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Finding the Fourth Proportional to 10,861.13, 16,291.79 and 5,934.90

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Solution

The fourth proportional to 10,861.13, 16,291.79 and 5,934.90 is: 8,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.13 : 16,291.79 = 5,934.90 : x
  2. Step 2: Convert to fraction form
    10,861.13/16,291.79 = 5,934.90/x
  3. Step 3: Cross multiply
    10,861.13x = 16,291.79 × 5,934.90
  4. Step 4: Simplify right side
    10,861.13x = 96,690,114.80
  5. Step 5: Solve for x
    x = 96,690,114.80/10,861.13
  6. Step 6: Final answer
    x = 8,902.40

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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.