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Finding the Third Proportional to 31,236 and 48,313.50

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Solution

The third proportional to 31,236 and 48,313.50 is: 74,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,236 : 48,313.50 = 48,313.50 : x
  2. Step 2: Convert to fraction form
    31,236/48,313.50 = 48,313.50/x
  3. Step 3: Cross multiply
    31,236x = 48,313.50 × 48,313.50
  4. Step 4: Simplify right side
    31,236x = 2,334,194,282.25
  5. Step 5: Solve for x
    x = 2,334,194,282.25/31,236
  6. Step 6: Final answer
    x = 74,727.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.