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Finding the Fourth Proportional to 57,351.96, 79,147.92 and 31,860.24

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Solution

The fourth proportional to 57,351.96, 79,147.92 and 31,860.24 is: 43,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.96 : 79,147.92 = 31,860.24 : x
  2. Step 2: Convert to fraction form
    57,351.96/79,147.92 = 31,860.24/x
  3. Step 3: Cross multiply
    57,351.96x = 79,147.92 × 31,860.24
  4. Step 4: Simplify right side
    57,351.96x = 2,521,671,726.70
  5. Step 5: Solve for x
    x = 2,521,671,726.70/57,351.96
  6. Step 6: Final answer
    x = 43,968.36

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1.5x scale

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.