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Finding the Third Proportional to 39,647.63 and 57,983

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Solution

The third proportional to 39,647.63 and 57,983 is: 84,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,647.63 : 57,983 = 57,983 : x
  2. Step 2: Convert to fraction form
    39,647.63/57,983 = 57,983/x
  3. Step 3: Cross multiply
    39,647.63x = 57,983 × 57,983
  4. Step 4: Simplify right side
    39,647.63x = 3,362,028,289
  5. Step 5: Solve for x
    x = 3,362,028,289/39,647.63
  6. Step 6: Final answer
    x = 84,797.72

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.