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Finding the Fourth Proportional to 7,549.68, 11,321.61 and 2,867.22

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Solution

The fourth proportional to 7,549.68, 11,321.61 and 2,867.22 is: 4,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,549.68 : 11,321.61 = 2,867.22 : x
  2. Step 2: Convert to fraction form
    7,549.68/11,321.61 = 2,867.22/x
  3. Step 3: Cross multiply
    7,549.68x = 11,321.61 × 2,867.22
  4. Step 4: Simplify right side
    7,549.68x = 32,461,553.61
  5. Step 5: Solve for x
    x = 32,461,553.61/7,549.68
  6. Step 6: Final answer
    x = 4,299.73

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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.