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Finding the Fourth Proportional to 57,812.73, 86,725.75 and 22,265.76

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Solution

The fourth proportional to 57,812.73, 86,725.75 and 22,265.76 is: 33,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,812.73 : 86,725.75 = 22,265.76 : x
  2. Step 2: Convert to fraction form
    57,812.73/86,725.75 = 22,265.76/x
  3. Step 3: Cross multiply
    57,812.73x = 86,725.75 × 22,265.76
  4. Step 4: Simplify right side
    57,812.73x = 1,931,014,735.32
  5. Step 5: Solve for x
    x = 1,931,014,735.32/57,812.73
  6. Step 6: Final answer
    x = 33,401.20

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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.