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Finding the Fourth Proportional to 22,959.01, 31,675.29 and 15,005.82

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Solution

The fourth proportional to 22,959.01, 31,675.29 and 15,005.82 is: 20,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,959.01 : 31,675.29 = 15,005.82 : x
  2. Step 2: Convert to fraction form
    22,959.01/31,675.29 = 15,005.82/x
  3. Step 3: Cross multiply
    22,959.01x = 31,675.29 × 15,005.82
  4. Step 4: Simplify right side
    22,959.01x = 475,313,762.70
  5. Step 5: Solve for x
    x = 475,313,762.70/22,959.01
  6. Step 6: Final answer
    x = 20,702.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.