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Finding the Third Proportional to 53,544 and 80,712

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Solution

The third proportional to 53,544 and 80,712 is: 121,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,544 : 80,712 = 80,712 : x
  2. Step 2: Convert to fraction form
    53,544/80,712 = 80,712/x
  3. Step 3: Cross multiply
    53,544x = 80,712 × 80,712
  4. Step 4: Simplify right side
    53,544x = 6,514,426,944
  5. Step 5: Solve for x
    x = 6,514,426,944/53,544
  6. Step 6: Final answer
    x = 121,664.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.