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Finding the Fourth Proportional to 73,778.40, 110,640.43 and 26,380.71

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Solution

The fourth proportional to 73,778.40, 110,640.43 and 26,380.71 is: 39,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,778.40 : 110,640.43 = 26,380.71 : x
  2. Step 2: Convert to fraction form
    73,778.40/110,640.43 = 26,380.71/x
  3. Step 3: Cross multiply
    73,778.40x = 110,640.43 × 26,380.71
  4. Step 4: Simplify right side
    73,778.40x = 2,918,773,098.11
  5. Step 5: Solve for x
    x = 2,918,773,098.11/73,778.40
  6. Step 6: Final answer
    x = 39,561.35

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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.