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Finding the Third Proportional to 31,604.50 and 47,607

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Solution

The third proportional to 31,604.50 and 47,607 is: 71,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,604.50 : 47,607 = 47,607 : x
  2. Step 2: Convert to fraction form
    31,604.50/47,607 = 47,607/x
  3. Step 3: Cross multiply
    31,604.50x = 47,607 × 47,607
  4. Step 4: Simplify right side
    31,604.50x = 2,266,426,449
  5. Step 5: Solve for x
    x = 2,266,426,449/31,604.50
  6. Step 6: Final answer
    x = 71,712.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.