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Finding the Fourth Proportional to 14,489,781.20, 21,687,432.60 and 14,489,781.20

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Solution

The fourth proportional to 14,489,781.20, 21,687,432.60 and 14,489,781.20 is: 21,687,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489,781.20 : 21,687,432.60 = 14,489,781.20 : x
  2. Step 2: Convert to fraction form
    14,489,781.20/21,687,432.60 = 14,489,781.20/x
  3. Step 3: Cross multiply
    14,489,781.20x = 21,687,432.60 × 14,489,781.20
  4. Step 4: Simplify right side
    14,489,781.20x = 314,246,153,163,747.12
  5. Step 5: Solve for x
    x = 314,246,153,163,747.12/14,489,781.20
  6. Step 6: Final answer
    x = 21,687,432.60

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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.