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Finding the Fourth Proportional to 26,270, 36,247.64 and 15,660.62

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Solution

The fourth proportional to 26,270, 36,247.64 and 15,660.62 is: 21,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,270 : 36,247.64 = 15,660.62 : x
  2. Step 2: Convert to fraction form
    26,270/36,247.64 = 15,660.62/x
  3. Step 3: Cross multiply
    26,270x = 36,247.64 × 15,660.62
  4. Step 4: Simplify right side
    26,270x = 567,660,515.94
  5. Step 5: Solve for x
    x = 567,660,515.94/26,270
  6. Step 6: Final answer
    x = 21,608.70

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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.