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Finding the Third Proportional to 53,008 and 75,864

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Solution

The third proportional to 53,008 and 75,864 is: 108,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,008 : 75,864 = 75,864 : x
  2. Step 2: Convert to fraction form
    53,008/75,864 = 75,864/x
  3. Step 3: Cross multiply
    53,008x = 75,864 × 75,864
  4. Step 4: Simplify right side
    53,008x = 5,755,346,496
  5. Step 5: Solve for x
    x = 5,755,346,496/53,008
  6. Step 6: Final answer
    x = 108,575.05

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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.