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Finding the Fourth Proportional to 32,660.88, 45,070.20 and 18,512.88

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Solution

The fourth proportional to 32,660.88, 45,070.20 and 18,512.88 is: 25,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,660.88 : 45,070.20 = 18,512.88 : x
  2. Step 2: Convert to fraction form
    32,660.88/45,070.20 = 18,512.88/x
  3. Step 3: Cross multiply
    32,660.88x = 45,070.20 × 18,512.88
  4. Step 4: Simplify right side
    32,660.88x = 834,379,204.18
  5. Step 5: Solve for x
    x = 834,379,204.18/32,660.88
  6. Step 6: Final answer
    x = 25,546.75

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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.