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Finding the Third Proportional to 7,056 and 9,168.75

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Solution

The third proportional to 7,056 and 9,168.75 is: 11,914.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056 : 9,168.75 = 9,168.75 : x
  2. Step 2: Convert to fraction form
    7,056/9,168.75 = 9,168.75/x
  3. Step 3: Cross multiply
    7,056x = 9,168.75 × 9,168.75
  4. Step 4: Simplify right side
    7,056x = 84,065,976.56
  5. Step 5: Solve for x
    x = 84,065,976.56/7,056
  6. Step 6: Final answer
    x = 11,914.11

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.