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Finding the Third Proportional to 7,504 and 10,915

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Solution

The third proportional to 7,504 and 10,915 is: 15,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504 : 10,915 = 10,915 : x
  2. Step 2: Convert to fraction form
    7,504/10,915 = 10,915/x
  3. Step 3: Cross multiply
    7,504x = 10,915 × 10,915
  4. Step 4: Simplify right side
    7,504x = 119,137,225
  5. Step 5: Solve for x
    x = 119,137,225/7,504
  6. Step 6: Final answer
    x = 15,876.50

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.