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Finding the Third Proportional to 13,988.25 and 19,557

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Solution

The third proportional to 13,988.25 and 19,557 is: 27,342.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.25 : 19,557 = 19,557 : x
  2. Step 2: Convert to fraction form
    13,988.25/19,557 = 19,557/x
  3. Step 3: Cross multiply
    13,988.25x = 19,557 × 19,557
  4. Step 4: Simplify right side
    13,988.25x = 382,476,249
  5. Step 5: Solve for x
    x = 382,476,249/13,988.25
  6. Step 6: Final answer
    x = 27,342.68

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.