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Finding the Fourth Proportional to 8,715.96, 12,032.62 and 7,370.96

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Solution

The fourth proportional to 8,715.96, 12,032.62 and 7,370.96 is: 10,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.96 : 12,032.62 = 7,370.96 : x
  2. Step 2: Convert to fraction form
    8,715.96/12,032.62 = 7,370.96/x
  3. Step 3: Cross multiply
    8,715.96x = 12,032.62 × 7,370.96
  4. Step 4: Simplify right side
    8,715.96x = 88,691,882.12
  5. Step 5: Solve for x
    x = 88,691,882.12/8,715.96
  6. Step 6: Final answer
    x = 10,175.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.