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Finding the Third Proportional to 48,503 and 74,915

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Solution

The third proportional to 48,503 and 74,915 is: 115,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,503 : 74,915 = 74,915 : x
  2. Step 2: Convert to fraction form
    48,503/74,915 = 74,915/x
  3. Step 3: Cross multiply
    48,503x = 74,915 × 74,915
  4. Step 4: Simplify right side
    48,503x = 5,612,257,225
  5. Step 5: Solve for x
    x = 5,612,257,225/48,503
  6. Step 6: Final answer
    x = 115,709.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.