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Finding the Third Proportional to 31,086 and 46,629

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Solution

The third proportional to 31,086 and 46,629 is: 69,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,086 : 46,629 = 46,629 : x
  2. Step 2: Convert to fraction form
    31,086/46,629 = 46,629/x
  3. Step 3: Cross multiply
    31,086x = 46,629 × 46,629
  4. Step 4: Simplify right side
    31,086x = 2,174,263,641
  5. Step 5: Solve for x
    x = 2,174,263,641/31,086
  6. Step 6: Final answer
    x = 69,943.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.