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Finding the Third Proportional to 5,526 and 7,872.75

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Solution

The third proportional to 5,526 and 7,872.75 is: 11,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,526 : 7,872.75 = 7,872.75 : x
  2. Step 2: Convert to fraction form
    5,526/7,872.75 = 7,872.75/x
  3. Step 3: Cross multiply
    5,526x = 7,872.75 × 7,872.75
  4. Step 4: Simplify right side
    5,526x = 61,980,192.56
  5. Step 5: Solve for x
    x = 61,980,192.56/5,526
  6. Step 6: Final answer
    x = 11,216.10

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.