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Finding the Fourth Proportional to 18,753.62, 25,879.29 and 10,255.46

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Solution

The fourth proportional to 18,753.62, 25,879.29 and 10,255.46 is: 14,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.62 : 25,879.29 = 10,255.46 : x
  2. Step 2: Convert to fraction form
    18,753.62/25,879.29 = 10,255.46/x
  3. Step 3: Cross multiply
    18,753.62x = 25,879.29 × 10,255.46
  4. Step 4: Simplify right side
    18,753.62x = 265,404,023.42
  5. Step 5: Solve for x
    x = 265,404,023.42/18,753.62
  6. Step 6: Final answer
    x = 14,152.15

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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.