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Finding the Third Proportional to 30,579 and 47,262

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Solution

The third proportional to 30,579 and 47,262 is: 73,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579 : 47,262 = 47,262 : x
  2. Step 2: Convert to fraction form
    30,579/47,262 = 47,262/x
  3. Step 3: Cross multiply
    30,579x = 47,262 × 47,262
  4. Step 4: Simplify right side
    30,579x = 2,233,696,644
  5. Step 5: Solve for x
    x = 2,233,696,644/30,579
  6. Step 6: Final answer
    x = 73,046.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.