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Finding the Fourth Proportional to 6,527.40, 9,791.10 and 5,992.80

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Solution

The fourth proportional to 6,527.40, 9,791.10 and 5,992.80 is: 8,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,527.40 : 9,791.10 = 5,992.80 : x
  2. Step 2: Convert to fraction form
    6,527.40/9,791.10 = 5,992.80/x
  3. Step 3: Cross multiply
    6,527.40x = 9,791.10 × 5,992.80
  4. Step 4: Simplify right side
    6,527.40x = 58,676,104.08
  5. Step 5: Solve for x
    x = 58,676,104.08/6,527.40
  6. Step 6: Final answer
    x = 8,989.20

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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.