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Finding the Fourth Proportional to 26,392.79, 39,591.77 and 7,672.97

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Solution

The fourth proportional to 26,392.79, 39,591.77 and 7,672.97 is: 11,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,392.79 : 39,591.77 = 7,672.97 : x
  2. Step 2: Convert to fraction form
    26,392.79/39,591.77 = 7,672.97/x
  3. Step 3: Cross multiply
    26,392.79x = 39,591.77 × 7,672.97
  4. Step 4: Simplify right side
    26,392.79x = 303,786,227.13
  5. Step 5: Solve for x
    x = 303,786,227.13/26,392.79
  6. Step 6: Final answer
    x = 11,510.20

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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.