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Finding the Fourth Proportional to 66,304.03, 99,461.94 and 18,918.23

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Solution

The fourth proportional to 66,304.03, 99,461.94 and 18,918.23 is: 28,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,304.03 : 99,461.94 = 18,918.23 : x
  2. Step 2: Convert to fraction form
    66,304.03/99,461.94 = 18,918.23/x
  3. Step 3: Cross multiply
    66,304.03x = 99,461.94 × 18,918.23
  4. Step 4: Simplify right side
    66,304.03x = 1,881,644,214.59
  5. Step 5: Solve for x
    x = 1,881,644,214.59/66,304.03
  6. Step 6: Final answer
    x = 28,379.03

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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.