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Finding the Fourth Proportional to 8,473.94, 12,708.35 and 3,207.18

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Solution

The fourth proportional to 8,473.94, 12,708.35 and 3,207.18 is: 4,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.94 : 12,708.35 = 3,207.18 : x
  2. Step 2: Convert to fraction form
    8,473.94/12,708.35 = 3,207.18/x
  3. Step 3: Cross multiply
    8,473.94x = 12,708.35 × 3,207.18
  4. Step 4: Simplify right side
    8,473.94x = 40,757,965.95
  5. Step 5: Solve for x
    x = 40,757,965.95/8,473.94
  6. Step 6: Final answer
    x = 4,809.80

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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.