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Finding the Fourth Proportional to 52,124.70, 71,932.14 and 28,251.30

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Solution

The fourth proportional to 52,124.70, 71,932.14 and 28,251.30 is: 38,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,124.70 : 71,932.14 = 28,251.30 : x
  2. Step 2: Convert to fraction form
    52,124.70/71,932.14 = 28,251.30/x
  3. Step 3: Cross multiply
    52,124.70x = 71,932.14 × 28,251.30
  4. Step 4: Simplify right side
    52,124.70x = 2,032,176,466.78
  5. Step 5: Solve for x
    x = 2,032,176,466.78/52,124.70
  6. Step 6: Final answer
    x = 38,986.82

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1.5x scale

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.