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Finding the Third Proportional to 19,528 and 27,828

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Solution

The third proportional to 19,528 and 27,828 is: 39,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,528 : 27,828 = 27,828 : x
  2. Step 2: Convert to fraction form
    19,528/27,828 = 27,828/x
  3. Step 3: Cross multiply
    19,528x = 27,828 × 27,828
  4. Step 4: Simplify right side
    19,528x = 774,397,584
  5. Step 5: Solve for x
    x = 774,397,584/19,528
  6. Step 6: Final answer
    x = 39,655.76

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.