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Finding the Fourth Proportional to 7,696.96, 10,616.88 and 5,338.24

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Solution

The fourth proportional to 7,696.96, 10,616.88 and 5,338.24 is: 7,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.96 : 10,616.88 = 5,338.24 : x
  2. Step 2: Convert to fraction form
    7,696.96/10,616.88 = 5,338.24/x
  3. Step 3: Cross multiply
    7,696.96x = 10,616.88 × 5,338.24
  4. Step 4: Simplify right side
    7,696.96x = 56,675,453.49
  5. Step 5: Solve for x
    x = 56,675,453.49/7,696.96
  6. Step 6: Final answer
    x = 7,363.36

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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.