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Finding the Third Proportional to 52,513 and 79,740

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Solution

The third proportional to 52,513 and 79,740 is: 121,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,513 : 79,740 = 79,740 : x
  2. Step 2: Convert to fraction form
    52,513/79,740 = 79,740/x
  3. Step 3: Cross multiply
    52,513x = 79,740 × 79,740
  4. Step 4: Simplify right side
    52,513x = 6,358,467,600
  5. Step 5: Solve for x
    x = 6,358,467,600/52,513
  6. Step 6: Final answer
    x = 121,083.69

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.