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Finding the Fourth Proportional to 8,737.11, 13,105.61 and 5,228.10

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Solution

The fourth proportional to 8,737.11, 13,105.61 and 5,228.10 is: 7,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.11 : 13,105.61 = 5,228.10 : x
  2. Step 2: Convert to fraction form
    8,737.11/13,105.61 = 5,228.10/x
  3. Step 3: Cross multiply
    8,737.11x = 13,105.61 × 5,228.10
  4. Step 4: Simplify right side
    8,737.11x = 68,517,433.11
  5. Step 5: Solve for x
    x = 68,517,433.11/8,737.11
  6. Step 6: Final answer
    x = 7,842.11

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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.