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Finding the Fourth Proportional to 5,874.10, 8,811.15 and 3,685.30

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Solution

The fourth proportional to 5,874.10, 8,811.15 and 3,685.30 is: 5,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,874.10 : 8,811.15 = 3,685.30 : x
  2. Step 2: Convert to fraction form
    5,874.10/8,811.15 = 3,685.30/x
  3. Step 3: Cross multiply
    5,874.10x = 8,811.15 × 3,685.30
  4. Step 4: Simplify right side
    5,874.10x = 32,471,731.10
  5. Step 5: Solve for x
    x = 32,471,731.10/5,874.10
  6. Step 6: Final answer
    x = 5,527.95

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Double scale
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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.