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Finding the Fourth Proportional to 57,868.44, 79,859.16 and 32,717.40

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Solution

The fourth proportional to 57,868.44, 79,859.16 and 32,717.40 is: 45,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.44 : 79,859.16 = 32,717.40 : x
  2. Step 2: Convert to fraction form
    57,868.44/79,859.16 = 32,717.40/x
  3. Step 3: Cross multiply
    57,868.44x = 79,859.16 × 32,717.40
  4. Step 4: Simplify right side
    57,868.44x = 2,612,784,081.38
  5. Step 5: Solve for x
    x = 2,612,784,081.38/57,868.44
  6. Step 6: Final answer
    x = 45,150.41

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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.