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Finding the Fourth Proportional to 23,469.80, 32,388.90 and 12,859.44

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Solution

The fourth proportional to 23,469.80, 32,388.90 and 12,859.44 is: 17,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,469.80 : 32,388.90 = 12,859.44 : x
  2. Step 2: Convert to fraction form
    23,469.80/32,388.90 = 12,859.44/x
  3. Step 3: Cross multiply
    23,469.80x = 32,388.90 × 12,859.44
  4. Step 4: Simplify right side
    23,469.80x = 416,503,116.22
  5. Step 5: Solve for x
    x = 416,503,116.22/23,469.80
  6. Step 6: Final answer
    x = 17,746.34

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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.