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Finding the Fourth Proportional to 38,951.68, 58,429.40 and 10,871.68

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Solution

The fourth proportional to 38,951.68, 58,429.40 and 10,871.68 is: 16,308.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,951.68 : 58,429.40 = 10,871.68 : x
  2. Step 2: Convert to fraction form
    38,951.68/58,429.40 = 10,871.68/x
  3. Step 3: Cross multiply
    38,951.68x = 58,429.40 × 10,871.68
  4. Step 4: Simplify right side
    38,951.68x = 635,225,739.39
  5. Step 5: Solve for x
    x = 635,225,739.39/38,951.68
  6. Step 6: Final answer
    x = 16,308.04

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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.