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Finding the Fourth Proportional to 6,745.65, 9,304.98 and 5,251.20

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Solution

The fourth proportional to 6,745.65, 9,304.98 and 5,251.20 is: 7,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.65 : 9,304.98 = 5,251.20 : x
  2. Step 2: Convert to fraction form
    6,745.65/9,304.98 = 5,251.20/x
  3. Step 3: Cross multiply
    6,745.65x = 9,304.98 × 5,251.20
  4. Step 4: Simplify right side
    6,745.65x = 48,862,310.98
  5. Step 5: Solve for x
    x = 48,862,310.98/6,745.65
  6. Step 6: Final answer
    x = 7,243.53

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1.5x scale

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.