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Finding the Fourth Proportional to 9,253.87, 12,767.27 and 5,220.20

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Solution

The fourth proportional to 9,253.87, 12,767.27 and 5,220.20 is: 7,202.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,253.87 : 12,767.27 = 5,220.20 : x
  2. Step 2: Convert to fraction form
    9,253.87/12,767.27 = 5,220.20/x
  3. Step 3: Cross multiply
    9,253.87x = 12,767.27 × 5,220.20
  4. Step 4: Simplify right side
    9,253.87x = 66,647,702.85
  5. Step 5: Solve for x
    x = 66,647,702.85/9,253.87
  6. Step 6: Final answer
    x = 7,202.14

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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.