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Finding the Fourth Proportional to 25,474.80, 38,211.28 and 6,755

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Solution

The fourth proportional to 25,474.80, 38,211.28 and 6,755 is: 10,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,474.80 : 38,211.28 = 6,755 : x
  2. Step 2: Convert to fraction form
    25,474.80/38,211.28 = 6,755/x
  3. Step 3: Cross multiply
    25,474.80x = 38,211.28 × 6,755
  4. Step 4: Simplify right side
    25,474.80x = 258,117,196.40
  5. Step 5: Solve for x
    x = 258,117,196.40/25,474.80
  6. Step 6: Final answer
    x = 10,132.26

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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.