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Finding the Fourth Proportional to 60,142.52, 82,998.04 and 38,958.64

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Solution

The fourth proportional to 60,142.52, 82,998.04 and 38,958.64 is: 53,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,142.52 : 82,998.04 = 38,958.64 : x
  2. Step 2: Convert to fraction form
    60,142.52/82,998.04 = 38,958.64/x
  3. Step 3: Cross multiply
    60,142.52x = 82,998.04 × 38,958.64
  4. Step 4: Simplify right side
    60,142.52x = 3,233,490,761.07
  5. Step 5: Solve for x
    x = 3,233,490,761.07/60,142.52
  6. Step 6: Final answer
    x = 53,763.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.