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Finding the Fourth Proportional to 22,691.88, 34,032.60 and 8,653.50

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Solution

The fourth proportional to 22,691.88, 34,032.60 and 8,653.50 is: 12,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.88 : 34,032.60 = 8,653.50 : x
  2. Step 2: Convert to fraction form
    22,691.88/34,032.60 = 8,653.50/x
  3. Step 3: Cross multiply
    22,691.88x = 34,032.60 × 8,653.50
  4. Step 4: Simplify right side
    22,691.88x = 294,501,104.10
  5. Step 5: Solve for x
    x = 294,501,104.10/22,691.88
  6. Step 6: Final answer
    x = 12,978.26

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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.