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Finding the Third Proportional to 48,288 and 74,769

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Solution

The third proportional to 48,288 and 74,769 is: 115,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,288 : 74,769 = 74,769 : x
  2. Step 2: Convert to fraction form
    48,288/74,769 = 74,769/x
  3. Step 3: Cross multiply
    48,288x = 74,769 × 74,769
  4. Step 4: Simplify right side
    48,288x = 5,590,403,361
  5. Step 5: Solve for x
    x = 5,590,403,361/48,288
  6. Step 6: Final answer
    x = 115,772.10

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.