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Finding the Third Proportional to 19,220 and 25,972

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Solution

The third proportional to 19,220 and 25,972 is: 35,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220 : 25,972 = 25,972 : x
  2. Step 2: Convert to fraction form
    19,220/25,972 = 25,972/x
  3. Step 3: Cross multiply
    19,220x = 25,972 × 25,972
  4. Step 4: Simplify right side
    19,220x = 674,544,784
  5. Step 5: Solve for x
    x = 674,544,784/19,220
  6. Step 6: Final answer
    x = 35,095.98

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.