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Finding the Third Proportional to 30,472 and 45,708

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Solution

The third proportional to 30,472 and 45,708 is: 68,562

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472 : 45,708 = 45,708 : x
  2. Step 2: Convert to fraction form
    30,472/45,708 = 45,708/x
  3. Step 3: Cross multiply
    30,472x = 45,708 × 45,708
  4. Step 4: Simplify right side
    30,472x = 2,089,221,264
  5. Step 5: Solve for x
    x = 2,089,221,264/30,472
  6. Step 6: Final answer
    x = 68,562

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.