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Finding the Fourth Proportional to 18,468.16, 27,726.84 and 15,712.54

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Solution

The fourth proportional to 18,468.16, 27,726.84 and 15,712.54 is: 23,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.16 : 27,726.84 = 15,712.54 : x
  2. Step 2: Convert to fraction form
    18,468.16/27,726.84 = 15,712.54/x
  3. Step 3: Cross multiply
    18,468.16x = 27,726.84 × 15,712.54
  4. Step 4: Simplify right side
    18,468.16x = 435,659,082.57
  5. Step 5: Solve for x
    x = 435,659,082.57/18,468.16
  6. Step 6: Final answer
    x = 23,589.74

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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.