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Finding the Fourth Proportional to 61,581.87, 92,372.94 and 20,028.87

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Solution

The fourth proportional to 61,581.87, 92,372.94 and 20,028.87 is: 30,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,581.87 : 92,372.94 = 20,028.87 : x
  2. Step 2: Convert to fraction form
    61,581.87/92,372.94 = 20,028.87/x
  3. Step 3: Cross multiply
    61,581.87x = 92,372.94 × 20,028.87
  4. Step 4: Simplify right side
    61,581.87x = 1,850,125,606.78
  5. Step 5: Solve for x
    x = 1,850,125,606.78/61,581.87
  6. Step 6: Final answer
    x = 30,043.35

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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.