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Finding the Fourth Proportional to 15,763.56, 23,645.28 and 5,375.28

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Solution

The fourth proportional to 15,763.56, 23,645.28 and 5,375.28 is: 8,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.56 : 23,645.28 = 5,375.28 : x
  2. Step 2: Convert to fraction form
    15,763.56/23,645.28 = 5,375.28/x
  3. Step 3: Cross multiply
    15,763.56x = 23,645.28 × 5,375.28
  4. Step 4: Simplify right side
    15,763.56x = 127,100,000.68
  5. Step 5: Solve for x
    x = 127,100,000.68/15,763.56
  6. Step 6: Final answer
    x = 8,062.90

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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.