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Finding the Fourth Proportional to 36,163, 54,253.50 and 19,515.88

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Solution

The fourth proportional to 36,163, 54,253.50 and 19,515.88 is: 29,278.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,163 : 54,253.50 = 19,515.88 : x
  2. Step 2: Convert to fraction form
    36,163/54,253.50 = 19,515.88/x
  3. Step 3: Cross multiply
    36,163x = 54,253.50 × 19,515.88
  4. Step 4: Simplify right side
    36,163x = 1,058,804,795.58
  5. Step 5: Solve for x
    x = 1,058,804,795.58/36,163
  6. Step 6: Final answer
    x = 29,278.68

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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.