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Finding the Fourth Proportional to 50,781.60, 70,078.12 and 29,263.44

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Solution

The fourth proportional to 50,781.60, 70,078.12 and 29,263.44 is: 40,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.60 : 70,078.12 = 29,263.44 : x
  2. Step 2: Convert to fraction form
    50,781.60/70,078.12 = 29,263.44/x
  3. Step 3: Cross multiply
    50,781.60x = 70,078.12 × 29,263.44
  4. Step 4: Simplify right side
    50,781.60x = 2,050,726,859.93
  5. Step 5: Solve for x
    x = 2,050,726,859.93/50,781.60
  6. Step 6: Final answer
    x = 40,383.27

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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.