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Finding the Fourth Proportional to 18,360.88, 25,468 and 17,731.48

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Solution

The fourth proportional to 18,360.88, 25,468 and 17,731.48 is: 24,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.88 : 25,468 = 17,731.48 : x
  2. Step 2: Convert to fraction form
    18,360.88/25,468 = 17,731.48/x
  3. Step 3: Cross multiply
    18,360.88x = 25,468 × 17,731.48
  4. Step 4: Simplify right side
    18,360.88x = 451,585,332.64
  5. Step 5: Solve for x
    x = 451,585,332.64/18,360.88
  6. Step 6: Final answer
    x = 24,594.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.