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Finding the Third Proportional to 53,092 and 81,488

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Solution

The third proportional to 53,092 and 81,488 is: 125,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,092 : 81,488 = 81,488 : x
  2. Step 2: Convert to fraction form
    53,092/81,488 = 81,488/x
  3. Step 3: Cross multiply
    53,092x = 81,488 × 81,488
  4. Step 4: Simplify right side
    53,092x = 6,640,294,144
  5. Step 5: Solve for x
    x = 6,640,294,144/53,092
  6. Step 6: Final answer
    x = 125,071.46

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.