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Finding the Fourth Proportional to 59,871.19, 82,627.79 and 34,380.90

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Solution

The fourth proportional to 59,871.19, 82,627.79 and 34,380.90 is: 47,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,871.19 : 82,627.79 = 34,380.90 : x
  2. Step 2: Convert to fraction form
    59,871.19/82,627.79 = 34,380.90/x
  3. Step 3: Cross multiply
    59,871.19x = 82,627.79 × 34,380.90
  4. Step 4: Simplify right side
    59,871.19x = 2,840,817,785.21
  5. Step 5: Solve for x
    x = 2,840,817,785.21/59,871.19
  6. Step 6: Final answer
    x = 47,448.83

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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.