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Finding the Fourth Proportional to 32,754.55, 45,202.89 and 18,418.90

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Solution

The fourth proportional to 32,754.55, 45,202.89 and 18,418.90 is: 25,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,754.55 : 45,202.89 = 18,418.90 : x
  2. Step 2: Convert to fraction form
    32,754.55/45,202.89 = 18,418.90/x
  3. Step 3: Cross multiply
    32,754.55x = 45,202.89 × 18,418.90
  4. Step 4: Simplify right side
    32,754.55x = 832,587,321.21
  5. Step 5: Solve for x
    x = 832,587,321.21/32,754.55
  6. Step 6: Final answer
    x = 25,418.98

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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.