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Finding the Fourth Proportional to 15,174.81, 22,766.33 and 8,605.64

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Solution

The fourth proportional to 15,174.81, 22,766.33 and 8,605.64 is: 12,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.81 : 22,766.33 = 8,605.64 : x
  2. Step 2: Convert to fraction form
    15,174.81/22,766.33 = 8,605.64/x
  3. Step 3: Cross multiply
    15,174.81x = 22,766.33 × 8,605.64
  4. Step 4: Simplify right side
    15,174.81x = 195,918,918.53
  5. Step 5: Solve for x
    x = 195,918,918.53/15,174.81
  6. Step 6: Final answer
    x = 12,910.80

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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.