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Finding the Fourth Proportional to 5,872.78, 8,809.17 and 4,304.62

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Solution

The fourth proportional to 5,872.78, 8,809.17 and 4,304.62 is: 6,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.78 : 8,809.17 = 4,304.62 : x
  2. Step 2: Convert to fraction form
    5,872.78/8,809.17 = 4,304.62/x
  3. Step 3: Cross multiply
    5,872.78x = 8,809.17 × 4,304.62
  4. Step 4: Simplify right side
    5,872.78x = 37,920,129.37
  5. Step 5: Solve for x
    x = 37,920,129.37/5,872.78
  6. Step 6: Final answer
    x = 6,456.93

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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.