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Finding the Fourth Proportional to 62,606.72, 93,913.50 and 15,860

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Solution

The fourth proportional to 62,606.72, 93,913.50 and 15,860 is: 23,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,606.72 : 93,913.50 = 15,860 : x
  2. Step 2: Convert to fraction form
    62,606.72/93,913.50 = 15,860/x
  3. Step 3: Cross multiply
    62,606.72x = 93,913.50 × 15,860
  4. Step 4: Simplify right side
    62,606.72x = 1,489,468,110
  5. Step 5: Solve for x
    x = 1,489,468,110/62,606.72
  6. Step 6: Final answer
    x = 23,790.87

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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.