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Finding the Fourth Proportional to 8,760.71, 13,077.10 and 7,598.90

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Solution

The fourth proportional to 8,760.71, 13,077.10 and 7,598.90 is: 11,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.71 : 13,077.10 = 7,598.90 : x
  2. Step 2: Convert to fraction form
    8,760.71/13,077.10 = 7,598.90/x
  3. Step 3: Cross multiply
    8,760.71x = 13,077.10 × 7,598.90
  4. Step 4: Simplify right side
    8,760.71x = 99,371,575.19
  5. Step 5: Solve for x
    x = 99,371,575.19/8,760.71
  6. Step 6: Final answer
    x = 11,342.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.