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Finding the Third Proportional to 212.63 and 334.13

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Solution

The third proportional to 212.63 and 334.13 is: 525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.63 : 334.13 = 334.13 : x
  2. Step 2: Convert to fraction form
    212.63/334.13 = 334.13/x
  3. Step 3: Cross multiply
    212.63x = 334.13 × 334.13
  4. Step 4: Simplify right side
    212.63x = 111,639.52
  5. Step 5: Solve for x
    x = 111,639.52/212.63
  6. Step 6: Final answer
    x = 525.05

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.