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Finding the Fourth Proportional to 53,922.80, 80,920.17 and 18,862.44

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Solution

The fourth proportional to 53,922.80, 80,920.17 and 18,862.44 is: 28,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,922.80 : 80,920.17 = 18,862.44 : x
  2. Step 2: Convert to fraction form
    53,922.80/80,920.17 = 18,862.44/x
  3. Step 3: Cross multiply
    53,922.80x = 80,920.17 × 18,862.44
  4. Step 4: Simplify right side
    53,922.80x = 1,526,351,851.41
  5. Step 5: Solve for x
    x = 1,526,351,851.41/53,922.80
  6. Step 6: Final answer
    x = 28,306.25

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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.