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Finding the Fourth Proportional to 32,809.88, 45,280.16 and 18,661.88

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Solution

The fourth proportional to 32,809.88, 45,280.16 and 18,661.88 is: 25,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,809.88 : 45,280.16 = 18,661.88 : x
  2. Step 2: Convert to fraction form
    32,809.88/45,280.16 = 18,661.88/x
  3. Step 3: Cross multiply
    32,809.88x = 45,280.16 × 18,661.88
  4. Step 4: Simplify right side
    32,809.88x = 845,012,912.30
  5. Step 5: Solve for x
    x = 845,012,912.30/32,809.88
  6. Step 6: Final answer
    x = 25,754.83

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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.