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Finding the Third Proportional to 22,120 and 39,056

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Solution

The third proportional to 22,120 and 39,056 is: 68,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120 : 39,056 = 39,056 : x
  2. Step 2: Convert to fraction form
    22,120/39,056 = 39,056/x
  3. Step 3: Cross multiply
    22,120x = 39,056 × 39,056
  4. Step 4: Simplify right side
    22,120x = 1,525,371,136
  5. Step 5: Solve for x
    x = 1,525,371,136/22,120
  6. Step 6: Final answer
    x = 68,958.91

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.