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Finding the Fourth Proportional to 22,752.28, 34,128.69 and 7,961.14

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Solution

The fourth proportional to 22,752.28, 34,128.69 and 7,961.14 is: 11,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,752.28 : 34,128.69 = 7,961.14 : x
  2. Step 2: Convert to fraction form
    22,752.28/34,128.69 = 7,961.14/x
  3. Step 3: Cross multiply
    22,752.28x = 34,128.69 × 7,961.14
  4. Step 4: Simplify right side
    22,752.28x = 271,703,279.11
  5. Step 5: Solve for x
    x = 271,703,279.11/22,752.28
  6. Step 6: Final answer
    x = 11,941.80

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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.