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Finding the Third Proportional to 13,971 and 19,216.50

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Solution

The third proportional to 13,971 and 19,216.50 is: 26,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971 : 19,216.50 = 19,216.50 : x
  2. Step 2: Convert to fraction form
    13,971/19,216.50 = 19,216.50/x
  3. Step 3: Cross multiply
    13,971x = 19,216.50 × 19,216.50
  4. Step 4: Simplify right side
    13,971x = 369,273,872.25
  5. Step 5: Solve for x
    x = 369,273,872.25/13,971
  6. Step 6: Final answer
    x = 26,431.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.