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Finding the Fourth Proportional to 34,878.80, 48,132.22 and 18,963.12

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Solution

The fourth proportional to 34,878.80, 48,132.22 and 18,963.12 is: 26,168.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,878.80 : 48,132.22 = 18,963.12 : x
  2. Step 2: Convert to fraction form
    34,878.80/48,132.22 = 18,963.12/x
  3. Step 3: Cross multiply
    34,878.80x = 48,132.22 × 18,963.12
  4. Step 4: Simplify right side
    34,878.80x = 912,737,063.73
  5. Step 5: Solve for x
    x = 912,737,063.73/34,878.80
  6. Step 6: Final answer
    x = 26,168.82

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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.