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Finding the Third Proportional to 5,356.13 and 7,824.94

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Solution

The third proportional to 5,356.13 and 7,824.94 is: 11,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.13 : 7,824.94 = 7,824.94 : x
  2. Step 2: Convert to fraction form
    5,356.13/7,824.94 = 7,824.94/x
  3. Step 3: Cross multiply
    5,356.13x = 7,824.94 × 7,824.94
  4. Step 4: Simplify right side
    5,356.13x = 61,229,646.88
  5. Step 5: Solve for x
    x = 61,229,646.88/5,356.13
  6. Step 6: Final answer
    x = 11,431.71

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.