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Finding the Fourth Proportional to 62,134, 93,201.72 and 15,387.28

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Solution

The fourth proportional to 62,134, 93,201.72 and 15,387.28 is: 23,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,134 : 93,201.72 = 15,387.28 : x
  2. Step 2: Convert to fraction form
    62,134/93,201.72 = 15,387.28/x
  3. Step 3: Cross multiply
    62,134x = 93,201.72 × 15,387.28
  4. Step 4: Simplify right side
    62,134x = 1,434,120,962.12
  5. Step 5: Solve for x
    x = 1,434,120,962.12/62,134
  6. Step 6: Final answer
    x = 23,081.10

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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.