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Finding the Fourth Proportional to 6,610.25, 9,915.11 and 2,168.25

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Solution

The fourth proportional to 6,610.25, 9,915.11 and 2,168.25 is: 3,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.25 : 9,915.11 = 2,168.25 : x
  2. Step 2: Convert to fraction form
    6,610.25/9,915.11 = 2,168.25/x
  3. Step 3: Cross multiply
    6,610.25x = 9,915.11 × 2,168.25
  4. Step 4: Simplify right side
    6,610.25x = 21,498,426.42
  5. Step 5: Solve for x
    x = 21,498,426.42/6,610.25
  6. Step 6: Final answer
    x = 3,252.29

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1.5x scale

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.