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Finding the Fourth Proportional to 57,480.44, 79,324.52 and 31,988.52

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Solution

The fourth proportional to 57,480.44, 79,324.52 and 31,988.52 is: 44,145.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.44 : 79,324.52 = 31,988.52 : x
  2. Step 2: Convert to fraction form
    57,480.44/79,324.52 = 31,988.52/x
  3. Step 3: Cross multiply
    57,480.44x = 79,324.52 × 31,988.52
  4. Step 4: Simplify right side
    57,480.44x = 2,537,473,834.57
  5. Step 5: Solve for x
    x = 2,537,473,834.57/57,480.44
  6. Step 6: Final answer
    x = 44,145.00

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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.