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Finding the Fourth Proportional to 57,890.80, 86,836.20 and 16,337.80

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Solution

The fourth proportional to 57,890.80, 86,836.20 and 16,337.80 is: 24,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.80 : 86,836.20 = 16,337.80 : x
  2. Step 2: Convert to fraction form
    57,890.80/86,836.20 = 16,337.80/x
  3. Step 3: Cross multiply
    57,890.80x = 86,836.20 × 16,337.80
  4. Step 4: Simplify right side
    57,890.80x = 1,418,712,468.36
  5. Step 5: Solve for x
    x = 1,418,712,468.36/57,890.80
  6. Step 6: Final answer
    x = 24,506.70

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Similar ratio
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1.5x scale

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.