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Finding the Fourth Proportional to 23,479.67, 32,401.67 and 12,869.30

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Solution

The fourth proportional to 23,479.67, 32,401.67 and 12,869.30 is: 17,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,479.67 : 32,401.67 = 12,869.30 : x
  2. Step 2: Convert to fraction form
    23,479.67/32,401.67 = 12,869.30/x
  3. Step 3: Cross multiply
    23,479.67x = 32,401.67 × 12,869.30
  4. Step 4: Simplify right side
    23,479.67x = 416,986,585.38
  5. Step 5: Solve for x
    x = 416,986,585.38/23,479.67
  6. Step 6: Final answer
    x = 17,759.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.