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Finding the Fourth Proportional to 26,307, 36,297.60 and 15,694.56

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Solution

The fourth proportional to 26,307, 36,297.60 and 15,694.56 is: 21,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,307 : 36,297.60 = 15,694.56 : x
  2. Step 2: Convert to fraction form
    26,307/36,297.60 = 15,694.56/x
  3. Step 3: Cross multiply
    26,307x = 36,297.60 × 15,694.56
  4. Step 4: Simplify right side
    26,307x = 569,674,861.06
  5. Step 5: Solve for x
    x = 569,674,861.06/26,307
  6. Step 6: Final answer
    x = 21,654.88

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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.