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Finding the Fourth Proportional to 57,489.78, 79,335.77 and 32,339.28

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Solution

The fourth proportional to 57,489.78, 79,335.77 and 32,339.28 is: 44,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.78 : 79,335.77 = 32,339.28 : x
  2. Step 2: Convert to fraction form
    57,489.78/79,335.77 = 32,339.28/x
  3. Step 3: Cross multiply
    57,489.78x = 79,335.77 × 32,339.28
  4. Step 4: Simplify right side
    57,489.78x = 2,565,661,364.21
  5. Step 5: Solve for x
    x = 2,565,661,364.21/57,489.78
  6. Step 6: Final answer
    x = 44,628.13

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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.