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Finding the Fourth Proportional to 57,762.90, 86,579.55 and 29,672.10

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Solution

The fourth proportional to 57,762.90, 86,579.55 and 29,672.10 is: 44,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.90 : 86,579.55 = 29,672.10 : x
  2. Step 2: Convert to fraction form
    57,762.90/86,579.55 = 29,672.10/x
  3. Step 3: Cross multiply
    57,762.90x = 86,579.55 × 29,672.10
  4. Step 4: Simplify right side
    57,762.90x = 2,568,997,065.56
  5. Step 5: Solve for x
    x = 2,568,997,065.56/57,762.90
  6. Step 6: Final answer
    x = 44,474.86

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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.