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Finding the Fourth Proportional to 52,480.71, 72,378.77 and 35,480.43

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Solution

The fourth proportional to 52,480.71, 72,378.77 and 35,480.43 is: 48,932.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.71 : 72,378.77 = 35,480.43 : x
  2. Step 2: Convert to fraction form
    52,480.71/72,378.77 = 35,480.43/x
  3. Step 3: Cross multiply
    52,480.71x = 72,378.77 × 35,480.43
  4. Step 4: Simplify right side
    52,480.71x = 2,568,029,705.07
  5. Step 5: Solve for x
    x = 2,568,029,705.07/52,480.71
  6. Step 6: Final answer
    x = 48,932.83

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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.