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Finding the Third Proportional to 31,325 and 46,977.50

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Solution

The third proportional to 31,325 and 46,977.50 is: 70,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325 : 46,977.50 = 46,977.50 : x
  2. Step 2: Convert to fraction form
    31,325/46,977.50 = 46,977.50/x
  3. Step 3: Cross multiply
    31,325x = 46,977.50 × 46,977.50
  4. Step 4: Simplify right side
    31,325x = 2,206,885,506.25
  5. Step 5: Solve for x
    x = 2,206,885,506.25/31,325
  6. Step 6: Final answer
    x = 70,451.25

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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.