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Finding the Fourth Proportional to 22,658.90, 34,009.97 and 13,910.90

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Solution

The fourth proportional to 22,658.90, 34,009.97 and 13,910.90 is: 20,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,658.90 : 34,009.97 = 13,910.90 : x
  2. Step 2: Convert to fraction form
    22,658.90/34,009.97 = 13,910.90/x
  3. Step 3: Cross multiply
    22,658.90x = 34,009.97 × 13,910.90
  4. Step 4: Simplify right side
    22,658.90x = 473,109,052.07
  5. Step 5: Solve for x
    x = 473,109,052.07/22,658.90
  6. Step 6: Final answer
    x = 20,879.62

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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.