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Finding the Fourth Proportional to 22,712.68, 34,081.98 and 8,858.44

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Solution

The fourth proportional to 22,712.68, 34,081.98 and 8,858.44 is: 13,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.68 : 34,081.98 = 8,858.44 : x
  2. Step 2: Convert to fraction form
    22,712.68/34,081.98 = 8,858.44/x
  3. Step 3: Cross multiply
    22,712.68x = 34,081.98 × 8,858.44
  4. Step 4: Simplify right side
    22,712.68x = 301,913,174.91
  5. Step 5: Solve for x
    x = 301,913,174.91/22,712.68
  6. Step 6: Final answer
    x = 13,292.71

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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.