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Finding the Third Proportional to 19,572 and 27,888

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Solution

The third proportional to 19,572 and 27,888 is: 39,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,572 : 27,888 = 27,888 : x
  2. Step 2: Convert to fraction form
    19,572/27,888 = 27,888/x
  3. Step 3: Cross multiply
    19,572x = 27,888 × 27,888
  4. Step 4: Simplify right side
    19,572x = 777,740,544
  5. Step 5: Solve for x
    x = 777,740,544/19,572
  6. Step 6: Final answer
    x = 39,737.41

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.