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Finding the Fourth Proportional to 57,844.92, 86,765.76 and 18,404.40

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Solution

The fourth proportional to 57,844.92, 86,765.76 and 18,404.40 is: 27,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,844.92 : 86,765.76 = 18,404.40 : x
  2. Step 2: Convert to fraction form
    57,844.92/86,765.76 = 18,404.40/x
  3. Step 3: Cross multiply
    57,844.92x = 86,765.76 × 18,404.40
  4. Step 4: Simplify right side
    57,844.92x = 1,596,871,753.34
  5. Step 5: Solve for x
    x = 1,596,871,753.34/57,844.92
  6. Step 6: Final answer
    x = 27,606.08

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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.