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Finding the Third Proportional to 25,362 and 39,783

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Solution

The third proportional to 25,362 and 39,783 is: 62,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,362 : 39,783 = 39,783 : x
  2. Step 2: Convert to fraction form
    25,362/39,783 = 39,783/x
  3. Step 3: Cross multiply
    25,362x = 39,783 × 39,783
  4. Step 4: Simplify right side
    25,362x = 1,582,687,089
  5. Step 5: Solve for x
    x = 1,582,687,089/25,362
  6. Step 6: Final answer
    x = 62,403.88

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.