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Finding the Fourth Proportional to 8,995.80, 12,377.34 and 8,788.44

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Solution

The fourth proportional to 8,995.80, 12,377.34 and 8,788.44 is: 12,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.80 : 12,377.34 = 8,788.44 : x
  2. Step 2: Convert to fraction form
    8,995.80/12,377.34 = 8,788.44/x
  3. Step 3: Cross multiply
    8,995.80x = 12,377.34 × 8,788.44
  4. Step 4: Simplify right side
    8,995.80x = 108,777,509.95
  5. Step 5: Solve for x
    x = 108,777,509.95/8,995.80
  6. Step 6: Final answer
    x = 12,092.03

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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.