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Finding the Fourth Proportional to 7,211.67, 9,952.09 and 4,025.17

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Solution

The fourth proportional to 7,211.67, 9,952.09 and 4,025.17 is: 5,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.67 : 9,952.09 = 4,025.17 : x
  2. Step 2: Convert to fraction form
    7,211.67/9,952.09 = 4,025.17/x
  3. Step 3: Cross multiply
    7,211.67x = 9,952.09 × 4,025.17
  4. Step 4: Simplify right side
    7,211.67x = 40,058,854.11
  5. Step 5: Solve for x
    x = 40,058,854.11/7,211.67
  6. Step 6: Final answer
    x = 5,554.73

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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.