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Finding the Fourth Proportional to 60,725.73, 90,996.31 and 38,471.63

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Solution

The fourth proportional to 60,725.73, 90,996.31 and 38,471.63 is: 57,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,725.73 : 90,996.31 = 38,471.63 : x
  2. Step 2: Convert to fraction form
    60,725.73/90,996.31 = 38,471.63/x
  3. Step 3: Cross multiply
    60,725.73x = 90,996.31 × 38,471.63
  4. Step 4: Simplify right side
    60,725.73x = 3,500,775,962.79
  5. Step 5: Solve for x
    x = 3,500,775,962.79/60,725.73
  6. Step 6: Final answer
    x = 57,648.97

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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.