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Finding the Fourth Proportional to 57,713.80, 79,644.74 and 32,218.68

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Solution

The fourth proportional to 57,713.80, 79,644.74 and 32,218.68 is: 44,461.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,713.80 : 79,644.74 = 32,218.68 : x
  2. Step 2: Convert to fraction form
    57,713.80/79,644.74 = 32,218.68/x
  3. Step 3: Cross multiply
    57,713.80x = 79,644.74 × 32,218.68
  4. Step 4: Simplify right side
    57,713.80x = 2,566,048,391.74
  5. Step 5: Solve for x
    x = 2,566,048,391.74/57,713.80
  6. Step 6: Final answer
    x = 44,461.61

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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.