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Finding the Third Proportional to 15,288 and 31,527

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Solution

The third proportional to 15,288 and 31,527 is: 65,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288 : 31,527 = 31,527 : x
  2. Step 2: Convert to fraction form
    15,288/31,527 = 31,527/x
  3. Step 3: Cross multiply
    15,288x = 31,527 × 31,527
  4. Step 4: Simplify right side
    15,288x = 993,951,729
  5. Step 5: Solve for x
    x = 993,951,729/15,288
  6. Step 6: Final answer
    x = 65,015.16

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.