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Finding the Fourth Proportional to 22,754.80, 34,129.75 and 7,963.99

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Solution

The fourth proportional to 22,754.80, 34,129.75 and 7,963.99 is: 11,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,754.80 : 34,129.75 = 7,963.99 : x
  2. Step 2: Convert to fraction form
    22,754.80/34,129.75 = 7,963.99/x
  3. Step 3: Cross multiply
    22,754.80x = 34,129.75 × 7,963.99
  4. Step 4: Simplify right side
    22,754.80x = 271,808,987.70
  5. Step 5: Solve for x
    x = 271,808,987.70/22,754.80
  6. Step 6: Final answer
    x = 11,945.13

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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.