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Finding the Fourth Proportional to 67,872.80, 93,713 and 45,265.12

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Solution

The fourth proportional to 67,872.80, 93,713 and 45,265.12 is: 62,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872.80 : 93,713 = 45,265.12 : x
  2. Step 2: Convert to fraction form
    67,872.80/93,713 = 45,265.12/x
  3. Step 3: Cross multiply
    67,872.80x = 93,713 × 45,265.12
  4. Step 4: Simplify right side
    67,872.80x = 4,241,930,190.56
  5. Step 5: Solve for x
    x = 4,241,930,190.56/67,872.80
  6. Step 6: Final answer
    x = 62,498.23

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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.