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Finding the Fourth Proportional to 13,042.62, 17,995.80 and 8,801.56

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Solution

The fourth proportional to 13,042.62, 17,995.80 and 8,801.56 is: 12,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.62 : 17,995.80 = 8,801.56 : x
  2. Step 2: Convert to fraction form
    13,042.62/17,995.80 = 8,801.56/x
  3. Step 3: Cross multiply
    13,042.62x = 17,995.80 × 8,801.56
  4. Step 4: Simplify right side
    13,042.62x = 158,391,168.95
  5. Step 5: Solve for x
    x = 158,391,168.95/13,042.62
  6. Step 6: Final answer
    x = 12,144.12

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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.