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Finding the Fourth Proportional to 22,959.31, 34,438.97 and 9,108.31

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Solution

The fourth proportional to 22,959.31, 34,438.97 and 9,108.31 is: 13,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,959.31 : 34,438.97 = 9,108.31 : x
  2. Step 2: Convert to fraction form
    22,959.31/34,438.97 = 9,108.31/x
  3. Step 3: Cross multiply
    22,959.31x = 34,438.97 × 9,108.31
  4. Step 4: Simplify right side
    22,959.31x = 313,680,900.94
  5. Step 5: Solve for x
    x = 313,680,900.94/22,959.31
  6. Step 6: Final answer
    x = 13,662.47

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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.