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Finding the Fourth Proportional to 17,995.60, 26,989.92 and 5,512.48

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Solution

The fourth proportional to 17,995.60, 26,989.92 and 5,512.48 is: 8,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,995.60 : 26,989.92 = 5,512.48 : x
  2. Step 2: Convert to fraction form
    17,995.60/26,989.92 = 5,512.48/x
  3. Step 3: Cross multiply
    17,995.60x = 26,989.92 × 5,512.48
  4. Step 4: Simplify right side
    17,995.60x = 148,781,394.20
  5. Step 5: Solve for x
    x = 148,781,394.20/17,995.60
  6. Step 6: Final answer
    x = 8,267.65

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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.