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Finding the Third Proportional to 30,656 and 47,487

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Solution

The third proportional to 30,656 and 47,487 is: 73,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656 : 47,487 = 47,487 : x
  2. Step 2: Convert to fraction form
    30,656/47,487 = 47,487/x
  3. Step 3: Cross multiply
    30,656x = 47,487 × 47,487
  4. Step 4: Simplify right side
    30,656x = 2,255,015,169
  5. Step 5: Solve for x
    x = 2,255,015,169/30,656
  6. Step 6: Final answer
    x = 73,558.69

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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.