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Finding the Fourth Proportional to 4,167.80, 6,251.70 and 3,511.70

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Solution

The fourth proportional to 4,167.80, 6,251.70 and 3,511.70 is: 5,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,167.80 : 6,251.70 = 3,511.70 : x
  2. Step 2: Convert to fraction form
    4,167.80/6,251.70 = 3,511.70/x
  3. Step 3: Cross multiply
    4,167.80x = 6,251.70 × 3,511.70
  4. Step 4: Simplify right side
    4,167.80x = 21,954,094.89
  5. Step 5: Solve for x
    x = 21,954,094.89/4,167.80
  6. Step 6: Final answer
    x = 5,267.55

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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.