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Finding the Fourth Proportional to 7,098.09, 10,647.17 and 7,087.86

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Solution

The fourth proportional to 7,098.09, 10,647.17 and 7,087.86 is: 10,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.09 : 10,647.17 = 7,087.86 : x
  2. Step 2: Convert to fraction form
    7,098.09/10,647.17 = 7,087.86/x
  3. Step 3: Cross multiply
    7,098.09x = 10,647.17 × 7,087.86
  4. Step 4: Simplify right side
    7,098.09x = 75,465,614.92
  5. Step 5: Solve for x
    x = 75,465,614.92/7,098.09
  6. Step 6: Final answer
    x = 10,631.82

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Double scale
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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.