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Finding the Fourth Proportional to 8,816.10, 13,224.15 and 6,869.76

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Solution

The fourth proportional to 8,816.10, 13,224.15 and 6,869.76 is: 10,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.10 : 13,224.15 = 6,869.76 : x
  2. Step 2: Convert to fraction form
    8,816.10/13,224.15 = 6,869.76/x
  3. Step 3: Cross multiply
    8,816.10x = 13,224.15 × 6,869.76
  4. Step 4: Simplify right side
    8,816.10x = 90,846,736.70
  5. Step 5: Solve for x
    x = 90,846,736.70/8,816.10
  6. Step 6: Final answer
    x = 10,304.64

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Similar ratio
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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.