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Finding the Fourth Proportional to 8,706.80, 12,025.17 and 5,885.81

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Solution

The fourth proportional to 8,706.80, 12,025.17 and 5,885.81 is: 8,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.80 : 12,025.17 = 5,885.81 : x
  2. Step 2: Convert to fraction form
    8,706.80/12,025.17 = 5,885.81/x
  3. Step 3: Cross multiply
    8,706.80x = 12,025.17 × 5,885.81
  4. Step 4: Simplify right side
    8,706.80x = 70,777,895.90
  5. Step 5: Solve for x
    x = 70,777,895.90/8,706.80
  6. Step 6: Final answer
    x = 8,129.04

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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.