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Finding the Fourth Proportional to 38,525.52, 57,788.52 and 11,871.18

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Solution

The fourth proportional to 38,525.52, 57,788.52 and 11,871.18 is: 17,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,525.52 : 57,788.52 = 11,871.18 : x
  2. Step 2: Convert to fraction form
    38,525.52/57,788.52 = 11,871.18/x
  3. Step 3: Cross multiply
    38,525.52x = 57,788.52 × 11,871.18
  4. Step 4: Simplify right side
    38,525.52x = 686,017,922.85
  5. Step 5: Solve for x
    x = 686,017,922.85/38,525.52
  6. Step 6: Final answer
    x = 17,806.84

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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.