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Finding the Fourth Proportional to 62,472.94, 93,719.16 and 20,343.08

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Solution

The fourth proportional to 62,472.94, 93,719.16 and 20,343.08 is: 30,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,472.94 : 93,719.16 = 20,343.08 : x
  2. Step 2: Convert to fraction form
    62,472.94/93,719.16 = 20,343.08/x
  3. Step 3: Cross multiply
    62,472.94x = 93,719.16 × 20,343.08
  4. Step 4: Simplify right side
    62,472.94x = 1,906,536,603.71
  5. Step 5: Solve for x
    x = 1,906,536,603.71/62,472.94
  6. Step 6: Final answer
    x = 30,517.80

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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.