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Finding the Fourth Proportional to 58,419.48, 87,663.29 and 38,453.61

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Solution

The fourth proportional to 58,419.48, 87,663.29 and 38,453.61 is: 57,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,419.48 : 87,663.29 = 38,453.61 : x
  2. Step 2: Convert to fraction form
    58,419.48/87,663.29 = 38,453.61/x
  3. Step 3: Cross multiply
    58,419.48x = 87,663.29 × 38,453.61
  4. Step 4: Simplify right side
    58,419.48x = 3,370,969,772.71
  5. Step 5: Solve for x
    x = 3,370,969,772.71/58,419.48
  6. Step 6: Final answer
    x = 57,702.84

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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.