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Finding the Fourth Proportional to 8,760.15, 12,092.90 and 5,931.63

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Solution

The fourth proportional to 8,760.15, 12,092.90 and 5,931.63 is: 8,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.15 : 12,092.90 = 5,931.63 : x
  2. Step 2: Convert to fraction form
    8,760.15/12,092.90 = 5,931.63/x
  3. Step 3: Cross multiply
    8,760.15x = 12,092.90 × 5,931.63
  4. Step 4: Simplify right side
    8,760.15x = 71,730,578.77
  5. Step 5: Solve for x
    x = 71,730,578.77/8,760.15
  6. Step 6: Final answer
    x = 8,188.28

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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.