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Finding the Third Proportional to 30,356 and 47,519

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Solution

The third proportional to 30,356 and 47,519 is: 74,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356 : 47,519 = 47,519 : x
  2. Step 2: Convert to fraction form
    30,356/47,519 = 47,519/x
  3. Step 3: Cross multiply
    30,356x = 47,519 × 47,519
  4. Step 4: Simplify right side
    30,356x = 2,258,055,361
  5. Step 5: Solve for x
    x = 2,258,055,361/30,356
  6. Step 6: Final answer
    x = 74,385.80

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.