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Finding the Third Proportional to 52,312 and 79,692

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Solution

The third proportional to 52,312 and 79,692 is: 121,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,312 : 79,692 = 79,692 : x
  2. Step 2: Convert to fraction form
    52,312/79,692 = 79,692/x
  3. Step 3: Cross multiply
    52,312x = 79,692 × 79,692
  4. Step 4: Simplify right side
    52,312x = 6,350,814,864
  5. Step 5: Solve for x
    x = 6,350,814,864/52,312
  6. Step 6: Final answer
    x = 121,402.64

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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.