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Finding the Fourth Proportional to 57,843.48, 86,765.98 and 15,725.64

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Solution

The fourth proportional to 57,843.48, 86,765.98 and 15,725.64 is: 23,588.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,843.48 : 86,765.98 = 15,725.64 : x
  2. Step 2: Convert to fraction form
    57,843.48/86,765.98 = 15,725.64/x
  3. Step 3: Cross multiply
    57,843.48x = 86,765.98 × 15,725.64
  4. Step 4: Simplify right side
    57,843.48x = 1,364,450,565.73
  5. Step 5: Solve for x
    x = 1,364,450,565.73/57,843.48
  6. Step 6: Final answer
    x = 23,588.67

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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.