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Finding the Fourth Proportional to 57,661.89, 86,462.07 and 29,570.55

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Solution

The fourth proportional to 57,661.89, 86,462.07 and 29,570.55 is: 44,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,661.89 : 86,462.07 = 29,570.55 : x
  2. Step 2: Convert to fraction form
    57,661.89/86,462.07 = 29,570.55/x
  3. Step 3: Cross multiply
    57,661.89x = 86,462.07 × 29,570.55
  4. Step 4: Simplify right side
    57,661.89x = 2,556,730,964.04
  5. Step 5: Solve for x
    x = 2,556,730,964.04/57,661.89
  6. Step 6: Final answer
    x = 44,340.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.