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Finding the Third Proportional to 31,294 and 40,623

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Solution

The third proportional to 31,294 and 40,623 is: 52,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,294 : 40,623 = 40,623 : x
  2. Step 2: Convert to fraction form
    31,294/40,623 = 40,623/x
  3. Step 3: Cross multiply
    31,294x = 40,623 × 40,623
  4. Step 4: Simplify right side
    31,294x = 1,650,228,129
  5. Step 5: Solve for x
    x = 1,650,228,129/31,294
  6. Step 6: Final answer
    x = 52,733.05

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.