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Finding the Fourth Proportional to 66,429,996.30, 99,644,994.45 and 18,560,940.30

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Solution

The fourth proportional to 66,429,996.30, 99,644,994.45 and 18,560,940.30 is: 27,841,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,996.30 : 99,644,994.45 = 18,560,940.30 : x
  2. Step 2: Convert to fraction form
    66,429,996.30/99,644,994.45 = 18,560,940.30/x
  3. Step 3: Cross multiply
    66,429,996.30x = 99,644,994.45 × 18,560,940.30
  4. Step 4: Simplify right side
    66,429,996.30x = 1,849,504,793,180,281.50
  5. Step 5: Solve for x
    x = 1,849,504,793,180,281.50/66,429,996.30
  6. Step 6: Final answer
    x = 27,841,410.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.