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Finding the Third Proportional to 160 and 224

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Solution

The third proportional to 160 and 224 is: 313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160 : 224 = 224 : x
  2. Step 2: Convert to fraction form
    160/224 = 224/x
  3. Step 3: Cross multiply
    160x = 224 × 224
  4. Step 4: Simplify right side
    160x = 50,176
  5. Step 5: Solve for x
    x = 50,176/160
  6. Step 6: Final answer
    x = 313.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.