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Finding the Fourth Proportional to 7,108.71, 10,663.07 and 3,817.28

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Solution

The fourth proportional to 7,108.71, 10,663.07 and 3,817.28 is: 5,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.71 : 10,663.07 = 3,817.28 : x
  2. Step 2: Convert to fraction form
    7,108.71/10,663.07 = 3,817.28/x
  3. Step 3: Cross multiply
    7,108.71x = 10,663.07 × 3,817.28
  4. Step 4: Simplify right side
    7,108.71x = 40,703,882.18
  5. Step 5: Solve for x
    x = 40,703,882.18/7,108.71
  6. Step 6: Final answer
    x = 5,725.92

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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.