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Finding the Fourth Proportional to 8,711.58, 12,015.29 and 5,874.46

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Solution

The fourth proportional to 8,711.58, 12,015.29 and 5,874.46 is: 8,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.58 : 12,015.29 = 5,874.46 : x
  2. Step 2: Convert to fraction form
    8,711.58/12,015.29 = 5,874.46/x
  3. Step 3: Cross multiply
    8,711.58x = 12,015.29 × 5,874.46
  4. Step 4: Simplify right side
    8,711.58x = 70,583,350.67
  5. Step 5: Solve for x
    x = 70,583,350.67/8,711.58
  6. Step 6: Final answer
    x = 8,102.24

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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.