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Finding the Third Proportional to 17,712 and 19,548

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Solution

The third proportional to 17,712 and 19,548 is: 21,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,712 : 19,548 = 19,548 : x
  2. Step 2: Convert to fraction form
    17,712/19,548 = 19,548/x
  3. Step 3: Cross multiply
    17,712x = 19,548 × 19,548
  4. Step 4: Simplify right side
    17,712x = 382,124,304
  5. Step 5: Solve for x
    x = 382,124,304/17,712
  6. Step 6: Final answer
    x = 21,574.32

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.