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Finding the Fourth Proportional to 70,778.44, 106,093.80 and 26,385.88

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Solution

The fourth proportional to 70,778.44, 106,093.80 and 26,385.88 is: 39,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,778.44 : 106,093.80 = 26,385.88 : x
  2. Step 2: Convert to fraction form
    70,778.44/106,093.80 = 26,385.88/x
  3. Step 3: Cross multiply
    70,778.44x = 106,093.80 × 26,385.88
  4. Step 4: Simplify right side
    70,778.44x = 2,799,378,275.54
  5. Step 5: Solve for x
    x = 2,799,378,275.54/70,778.44
  6. Step 6: Final answer
    x = 39,551.29

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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.