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Finding the Third Proportional to 17,220 and 25,056

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Solution

The third proportional to 17,220 and 25,056 is: 36,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220 : 25,056 = 25,056 : x
  2. Step 2: Convert to fraction form
    17,220/25,056 = 25,056/x
  3. Step 3: Cross multiply
    17,220x = 25,056 × 25,056
  4. Step 4: Simplify right side
    17,220x = 627,803,136
  5. Step 5: Solve for x
    x = 627,803,136/17,220
  6. Step 6: Final answer
    x = 36,457.79

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.