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Finding the Third Proportional to 244 and 392.50

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Solution

The third proportional to 244 and 392.50 is: 631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    244 : 392.50 = 392.50 : x
  2. Step 2: Convert to fraction form
    244/392.50 = 392.50/x
  3. Step 3: Cross multiply
    244x = 392.50 × 392.50
  4. Step 4: Simplify right side
    244x = 154,056.25
  5. Step 5: Solve for x
    x = 154,056.25/244
  6. Step 6: Final answer
    x = 631.38

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.