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Finding the Fourth Proportional to 62,428.76, 93,645.88 and 18,060

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Solution

The fourth proportional to 62,428.76, 93,645.88 and 18,060 is: 27,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,428.76 : 93,645.88 = 18,060 : x
  2. Step 2: Convert to fraction form
    62,428.76/93,645.88 = 18,060/x
  3. Step 3: Cross multiply
    62,428.76x = 93,645.88 × 18,060
  4. Step 4: Simplify right side
    62,428.76x = 1,691,244,592.80
  5. Step 5: Solve for x
    x = 1,691,244,592.80/62,428.76
  6. Step 6: Final answer
    x = 27,090.79

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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.