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Finding the Fourth Proportional to 6,708.70, 9,257.98 and 3,725

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Solution

The fourth proportional to 6,708.70, 9,257.98 and 3,725 is: 5,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,708.70 : 9,257.98 = 3,725 : x
  2. Step 2: Convert to fraction form
    6,708.70/9,257.98 = 3,725/x
  3. Step 3: Cross multiply
    6,708.70x = 9,257.98 × 3,725
  4. Step 4: Simplify right side
    6,708.70x = 34,485,975.50
  5. Step 5: Solve for x
    x = 34,485,975.50/6,708.70
  6. Step 6: Final answer
    x = 5,140.49

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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.