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Finding the Third Proportional to 53,470 and 74,757

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Solution

The third proportional to 53,470 and 74,757 is: 104,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,470 : 74,757 = 74,757 : x
  2. Step 2: Convert to fraction form
    53,470/74,757 = 74,757/x
  3. Step 3: Cross multiply
    53,470x = 74,757 × 74,757
  4. Step 4: Simplify right side
    53,470x = 5,588,609,049
  5. Step 5: Solve for x
    x = 5,588,609,049/53,470
  6. Step 6: Final answer
    x = 104,518.59

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.