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Finding the Fourth Proportional to 62,612.72, 93,922.56 and 15,866

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Solution

The fourth proportional to 62,612.72, 93,922.56 and 15,866 is: 23,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,612.72 : 93,922.56 = 15,866 : x
  2. Step 2: Convert to fraction form
    62,612.72/93,922.56 = 15,866/x
  3. Step 3: Cross multiply
    62,612.72x = 93,922.56 × 15,866
  4. Step 4: Simplify right side
    62,612.72x = 1,490,175,336.96
  5. Step 5: Solve for x
    x = 1,490,175,336.96/62,612.72
  6. Step 6: Final answer
    x = 23,799.88

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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.