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Finding the Fourth Proportional to 5,672.25, 7,826.56 and 3,313.94

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Solution

The fourth proportional to 5,672.25, 7,826.56 and 3,313.94 is: 4,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.25 : 7,826.56 = 3,313.94 : x
  2. Step 2: Convert to fraction form
    5,672.25/7,826.56 = 3,313.94/x
  3. Step 3: Cross multiply
    5,672.25x = 7,826.56 × 3,313.94
  4. Step 4: Simplify right side
    5,672.25x = 25,936,744.61
  5. Step 5: Solve for x
    x = 25,936,744.61/5,672.25
  6. Step 6: Final answer
    x = 4,572.56

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1.5x scale

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.