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Finding the Fourth Proportional to 26,647.50, 36,773.55 and 15,469.50

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Solution

The fourth proportional to 26,647.50, 36,773.55 and 15,469.50 is: 21,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,647.50 : 36,773.55 = 15,469.50 : x
  2. Step 2: Convert to fraction form
    26,647.50/36,773.55 = 15,469.50/x
  3. Step 3: Cross multiply
    26,647.50x = 36,773.55 × 15,469.50
  4. Step 4: Simplify right side
    26,647.50x = 568,868,431.73
  5. Step 5: Solve for x
    x = 568,868,431.73/26,647.50
  6. Step 6: Final answer
    x = 21,347.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.