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Finding the Fourth Proportional to 12,474.66, 18,712.08 and 8,567.22

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Solution

The fourth proportional to 12,474.66, 18,712.08 and 8,567.22 is: 12,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.66 : 18,712.08 = 8,567.22 : x
  2. Step 2: Convert to fraction form
    12,474.66/18,712.08 = 8,567.22/x
  3. Step 3: Cross multiply
    12,474.66x = 18,712.08 × 8,567.22
  4. Step 4: Simplify right side
    12,474.66x = 160,310,506.02
  5. Step 5: Solve for x
    x = 160,310,506.02/12,474.66
  6. Step 6: Final answer
    x = 12,850.89

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Similar ratio
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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.