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Finding the Fourth Proportional to 57,708.88, 79,639.68 and 32,560

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Solution

The fourth proportional to 57,708.88, 79,639.68 and 32,560 is: 44,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,708.88 : 79,639.68 = 32,560 : x
  2. Step 2: Convert to fraction form
    57,708.88/79,639.68 = 32,560/x
  3. Step 3: Cross multiply
    57,708.88x = 79,639.68 × 32,560
  4. Step 4: Simplify right side
    57,708.88x = 2,593,067,980.80
  5. Step 5: Solve for x
    x = 2,593,067,980.80/57,708.88
  6. Step 6: Final answer
    x = 44,933.60

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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.