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Finding the Fourth Proportional to 57,418.46, 79,235 and 31,924.80

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Solution

The fourth proportional to 57,418.46, 79,235 and 31,924.80 is: 44,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,418.46 : 79,235 = 31,924.80 : x
  2. Step 2: Convert to fraction form
    57,418.46/79,235 = 31,924.80/x
  3. Step 3: Cross multiply
    57,418.46x = 79,235 × 31,924.80
  4. Step 4: Simplify right side
    57,418.46x = 2,529,561,528
  5. Step 5: Solve for x
    x = 2,529,561,528/57,418.46
  6. Step 6: Final answer
    x = 44,054.85

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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.