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Finding the Fourth Proportional to 19,249.57, 28,867.02 and 9,251.56

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Solution

The fourth proportional to 19,249.57, 28,867.02 and 9,251.56 is: 13,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.57 : 28,867.02 = 9,251.56 : x
  2. Step 2: Convert to fraction form
    19,249.57/28,867.02 = 9,251.56/x
  3. Step 3: Cross multiply
    19,249.57x = 28,867.02 × 9,251.56
  4. Step 4: Simplify right side
    19,249.57x = 267,064,967.55
  5. Step 5: Solve for x
    x = 267,064,967.55/19,249.57
  6. Step 6: Final answer
    x = 13,873.81

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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.