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Finding the Fourth Proportional to 57,833.42, 86,750.13 and 18,390.53

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Solution

The fourth proportional to 57,833.42, 86,750.13 and 18,390.53 is: 27,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,833.42 : 86,750.13 = 18,390.53 : x
  2. Step 2: Convert to fraction form
    57,833.42/86,750.13 = 18,390.53/x
  3. Step 3: Cross multiply
    57,833.42x = 86,750.13 × 18,390.53
  4. Step 4: Simplify right side
    57,833.42x = 1,595,380,868.27
  5. Step 5: Solve for x
    x = 1,595,380,868.27/57,833.42
  6. Step 6: Final answer
    x = 27,585.80

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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.