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Finding the Fourth Proportional to 17,608.56, 26,415 and 8,243.76

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Solution

The fourth proportional to 17,608.56, 26,415 and 8,243.76 is: 12,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.56 : 26,415 = 8,243.76 : x
  2. Step 2: Convert to fraction form
    17,608.56/26,415 = 8,243.76/x
  3. Step 3: Cross multiply
    17,608.56x = 26,415 × 8,243.76
  4. Step 4: Simplify right side
    17,608.56x = 217,758,920.40
  5. Step 5: Solve for x
    x = 217,758,920.40/17,608.56
  6. Step 6: Final answer
    x = 12,366.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.