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Finding the Fourth Proportional to 18,049.28, 24,911.04 and 15,060.32

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Solution

The fourth proportional to 18,049.28, 24,911.04 and 15,060.32 is: 20,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,049.28 : 24,911.04 = 15,060.32 : x
  2. Step 2: Convert to fraction form
    18,049.28/24,911.04 = 15,060.32/x
  3. Step 3: Cross multiply
    18,049.28x = 24,911.04 × 15,060.32
  4. Step 4: Simplify right side
    18,049.28x = 375,168,233.93
  5. Step 5: Solve for x
    x = 375,168,233.93/18,049.28
  6. Step 6: Final answer
    x = 20,785.77

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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.