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Finding the Fourth Proportional to 57,803.26, 86,722.39 and 40,968.86

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Solution

The fourth proportional to 57,803.26, 86,722.39 and 40,968.86 is: 61,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.26 : 86,722.39 = 40,968.86 : x
  2. Step 2: Convert to fraction form
    57,803.26/86,722.39 = 40,968.86/x
  3. Step 3: Cross multiply
    57,803.26x = 86,722.39 × 40,968.86
  4. Step 4: Simplify right side
    57,803.26x = 3,552,917,454.78
  5. Step 5: Solve for x
    x = 3,552,917,454.78/57,803.26
  6. Step 6: Final answer
    x = 61,465.69

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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.