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Finding the Fourth Proportional to 8,761.77, 13,117.14 and 4,591.89

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Solution

The fourth proportional to 8,761.77, 13,117.14 and 4,591.89 is: 6,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.77 : 13,117.14 = 4,591.89 : x
  2. Step 2: Convert to fraction form
    8,761.77/13,117.14 = 4,591.89/x
  3. Step 3: Cross multiply
    8,761.77x = 13,117.14 × 4,591.89
  4. Step 4: Simplify right side
    8,761.77x = 60,232,463.99
  5. Step 5: Solve for x
    x = 60,232,463.99/8,761.77
  6. Step 6: Final answer
    x = 6,874.46

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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.