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Finding the Fourth Proportional to 58,719.88, 88,042.36 and 38,706.28

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Solution

The fourth proportional to 58,719.88, 88,042.36 and 38,706.28 is: 58,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.88 : 88,042.36 = 38,706.28 : x
  2. Step 2: Convert to fraction form
    58,719.88/88,042.36 = 38,706.28/x
  3. Step 3: Cross multiply
    58,719.88x = 88,042.36 × 38,706.28
  4. Step 4: Simplify right side
    58,719.88x = 3,407,792,238.02
  5. Step 5: Solve for x
    x = 3,407,792,238.02/58,719.88
  6. Step 6: Final answer
    x = 58,034.73

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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.