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Finding the Third Proportional to 53,418 and 79,304

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Solution

The third proportional to 53,418 and 79,304 is: 117,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418 : 79,304 = 79,304 : x
  2. Step 2: Convert to fraction form
    53,418/79,304 = 79,304/x
  3. Step 3: Cross multiply
    53,418x = 79,304 × 79,304
  4. Step 4: Simplify right side
    53,418x = 6,289,124,416
  5. Step 5: Solve for x
    x = 6,289,124,416/53,418
  6. Step 6: Final answer
    x = 117,734.18

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.