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Finding the Fourth Proportional to 8,634.80, 12,947.92 and 4,473.70

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Solution

The fourth proportional to 8,634.80, 12,947.92 and 4,473.70 is: 6,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.80 : 12,947.92 = 4,473.70 : x
  2. Step 2: Convert to fraction form
    8,634.80/12,947.92 = 4,473.70/x
  3. Step 3: Cross multiply
    8,634.80x = 12,947.92 × 4,473.70
  4. Step 4: Simplify right side
    8,634.80x = 57,925,066.15
  5. Step 5: Solve for x
    x = 57,925,066.15/8,634.80
  6. Step 6: Final answer
    x = 6,708.33

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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.