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Finding the Fourth Proportional to 17,763.71, 26,648.19 and 5,913.61

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Solution

The fourth proportional to 17,763.71, 26,648.19 and 5,913.61 is: 8,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,763.71 : 26,648.19 = 5,913.61 : x
  2. Step 2: Convert to fraction form
    17,763.71/26,648.19 = 5,913.61/x
  3. Step 3: Cross multiply
    17,763.71x = 26,648.19 × 5,913.61
  4. Step 4: Simplify right side
    17,763.71x = 157,586,936.25
  5. Step 5: Solve for x
    x = 157,586,936.25/17,763.71
  6. Step 6: Final answer
    x = 8,871.29

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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.