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Finding the Fourth Proportional to 10,672.60, 16,008.90 and 3,747.80

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Solution

The fourth proportional to 10,672.60, 16,008.90 and 3,747.80 is: 5,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.60 : 16,008.90 = 3,747.80 : x
  2. Step 2: Convert to fraction form
    10,672.60/16,008.90 = 3,747.80/x
  3. Step 3: Cross multiply
    10,672.60x = 16,008.90 × 3,747.80
  4. Step 4: Simplify right side
    10,672.60x = 59,998,155.42
  5. Step 5: Solve for x
    x = 59,998,155.42/10,672.60
  6. Step 6: Final answer
    x = 5,621.70

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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.