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Finding the Fourth Proportional to 18,400.60, 27,600.90 and 17,594.20

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Solution

The fourth proportional to 18,400.60, 27,600.90 and 17,594.20 is: 26,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.60 : 27,600.90 = 17,594.20 : x
  2. Step 2: Convert to fraction form
    18,400.60/27,600.90 = 17,594.20/x
  3. Step 3: Cross multiply
    18,400.60x = 27,600.90 × 17,594.20
  4. Step 4: Simplify right side
    18,400.60x = 485,615,754.78
  5. Step 5: Solve for x
    x = 485,615,754.78/18,400.60
  6. Step 6: Final answer
    x = 26,391.30

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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.