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Finding the Third Proportional to 45,876 and 70,130

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Solution

The third proportional to 45,876 and 70,130 is: 107,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,876 : 70,130 = 70,130 : x
  2. Step 2: Convert to fraction form
    45,876/70,130 = 70,130/x
  3. Step 3: Cross multiply
    45,876x = 70,130 × 70,130
  4. Step 4: Simplify right side
    45,876x = 4,918,216,900
  5. Step 5: Solve for x
    x = 4,918,216,900/45,876
  6. Step 6: Final answer
    x = 107,206.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.