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Finding the Third Proportional to 30,309 and 47,004

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Solution

The third proportional to 30,309 and 47,004 is: 72,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309 : 47,004 = 47,004 : x
  2. Step 2: Convert to fraction form
    30,309/47,004 = 47,004/x
  3. Step 3: Cross multiply
    30,309x = 47,004 × 47,004
  4. Step 4: Simplify right side
    30,309x = 2,209,376,016
  5. Step 5: Solve for x
    x = 2,209,376,016/30,309
  6. Step 6: Final answer
    x = 72,895.05

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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.