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Finding the Fourth Proportional to 26,792.49, 36,978.75 and 15,469.32

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Solution

The fourth proportional to 26,792.49, 36,978.75 and 15,469.32 is: 21,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,792.49 : 36,978.75 = 15,469.32 : x
  2. Step 2: Convert to fraction form
    26,792.49/36,978.75 = 15,469.32/x
  3. Step 3: Cross multiply
    26,792.49x = 36,978.75 × 15,469.32
  4. Step 4: Simplify right side
    26,792.49x = 572,036,116.95
  5. Step 5: Solve for x
    x = 572,036,116.95/26,792.49
  6. Step 6: Final answer
    x = 21,350.61

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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.