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Finding the Fourth Proportional to 22,022.92, 30,391.09 and 12,590.88

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Solution

The fourth proportional to 22,022.92, 30,391.09 and 12,590.88 is: 17,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,022.92 : 30,391.09 = 12,590.88 : x
  2. Step 2: Convert to fraction form
    22,022.92/30,391.09 = 12,590.88/x
  3. Step 3: Cross multiply
    22,022.92x = 30,391.09 × 12,590.88
  4. Step 4: Simplify right side
    22,022.92x = 382,650,567.26
  5. Step 5: Solve for x
    x = 382,650,567.26/22,022.92
  6. Step 6: Final answer
    x = 17,375.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.