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Finding the Fourth Proportional to 22,689.91, 34,034.88 and 7,108.75

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Solution

The fourth proportional to 22,689.91, 34,034.88 and 7,108.75 is: 10,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.91 : 34,034.88 = 7,108.75 : x
  2. Step 2: Convert to fraction form
    22,689.91/34,034.88 = 7,108.75/x
  3. Step 3: Cross multiply
    22,689.91x = 34,034.88 × 7,108.75
  4. Step 4: Simplify right side
    22,689.91x = 241,945,453.20
  5. Step 5: Solve for x
    x = 241,945,453.20/22,689.91
  6. Step 6: Final answer
    x = 10,663.13

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Double scale
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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.