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Finding the Fourth Proportional to 22,760.88, 34,141.68 and 8,913.12

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Solution

The fourth proportional to 22,760.88, 34,141.68 and 8,913.12 is: 13,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,760.88 : 34,141.68 = 8,913.12 : x
  2. Step 2: Convert to fraction form
    22,760.88/34,141.68 = 8,913.12/x
  3. Step 3: Cross multiply
    22,760.88x = 34,141.68 × 8,913.12
  4. Step 4: Simplify right side
    22,760.88x = 304,308,890.84
  5. Step 5: Solve for x
    x = 304,308,890.84/22,760.88
  6. Step 6: Final answer
    x = 13,369.82

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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.