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Finding the Fourth Proportional to 26,792.99, 36,979.44 and 15,469.82

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Solution

The fourth proportional to 26,792.99, 36,979.44 and 15,469.82 is: 21,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,792.99 : 36,979.44 = 15,469.82 : x
  2. Step 2: Convert to fraction form
    26,792.99/36,979.44 = 15,469.82/x
  3. Step 3: Cross multiply
    26,792.99x = 36,979.44 × 15,469.82
  4. Step 4: Simplify right side
    26,792.99x = 572,065,280.50
  5. Step 5: Solve for x
    x = 572,065,280.50/26,792.99
  6. Step 6: Final answer
    x = 21,351.30

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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.