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Finding the Third Proportional to 15,938 and 37,220

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Solution

The third proportional to 15,938 and 37,220 is: 86,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938 : 37,220 = 37,220 : x
  2. Step 2: Convert to fraction form
    15,938/37,220 = 37,220/x
  3. Step 3: Cross multiply
    15,938x = 37,220 × 37,220
  4. Step 4: Simplify right side
    15,938x = 1,385,328,400
  5. Step 5: Solve for x
    x = 1,385,328,400/15,938
  6. Step 6: Final answer
    x = 86,919.84

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.