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Finding the Fourth Proportional to 36,358.92, 54,436.68 and 19,659

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Solution

The fourth proportional to 36,358.92, 54,436.68 and 19,659 is: 29,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,358.92 : 54,436.68 = 19,659 : x
  2. Step 2: Convert to fraction form
    36,358.92/54,436.68 = 19,659/x
  3. Step 3: Cross multiply
    36,358.92x = 54,436.68 × 19,659
  4. Step 4: Simplify right side
    36,358.92x = 1,070,170,692.12
  5. Step 5: Solve for x
    x = 1,070,170,692.12/36,358.92
  6. Step 6: Final answer
    x = 29,433.51

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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.