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Finding the Third Proportional to 53,608 and 74,076

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Solution

The third proportional to 53,608 and 74,076 is: 102,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,608 : 74,076 = 74,076 : x
  2. Step 2: Convert to fraction form
    53,608/74,076 = 74,076/x
  3. Step 3: Cross multiply
    53,608x = 74,076 × 74,076
  4. Step 4: Simplify right side
    53,608x = 5,487,253,776
  5. Step 5: Solve for x
    x = 5,487,253,776/53,608
  6. Step 6: Final answer
    x = 102,358.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.