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Finding the Fourth Proportional to 66,743.24, 100,114.88 and 19,996.11

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Solution

The fourth proportional to 66,743.24, 100,114.88 and 19,996.11 is: 29,994.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,743.24 : 100,114.88 = 19,996.11 : x
  2. Step 2: Convert to fraction form
    66,743.24/100,114.88 = 19,996.11/x
  3. Step 3: Cross multiply
    66,743.24x = 100,114.88 × 19,996.11
  4. Step 4: Simplify right side
    66,743.24x = 2,001,908,053.14
  5. Step 5: Solve for x
    x = 2,001,908,053.14/66,743.24
  6. Step 6: Final answer
    x = 29,994.17

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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.