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Finding the Fourth Proportional to 26,563.76, 36,672.72 and 15,956

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Solution

The fourth proportional to 26,563.76, 36,672.72 and 15,956 is: 22,028.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,563.76 : 36,672.72 = 15,956 : x
  2. Step 2: Convert to fraction form
    26,563.76/36,672.72 = 15,956/x
  3. Step 3: Cross multiply
    26,563.76x = 36,672.72 × 15,956
  4. Step 4: Simplify right side
    26,563.76x = 585,149,920.32
  5. Step 5: Solve for x
    x = 585,149,920.32/26,563.76
  6. Step 6: Final answer
    x = 22,028.13

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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.