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Finding the Third Proportional to 5,356.13 and 8,338.50

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Solution

The third proportional to 5,356.13 and 8,338.50 is: 12,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.13 : 8,338.50 = 8,338.50 : x
  2. Step 2: Convert to fraction form
    5,356.13/8,338.50 = 8,338.50/x
  3. Step 3: Cross multiply
    5,356.13x = 8,338.50 × 8,338.50
  4. Step 4: Simplify right side
    5,356.13x = 69,530,582.25
  5. Step 5: Solve for x
    x = 69,530,582.25/5,356.13
  6. Step 6: Final answer
    x = 12,981.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.