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Finding the Third Proportional to 243.84 and 526.92

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Solution

The third proportional to 243.84 and 526.92 is: 1,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.84 : 526.92 = 526.92 : x
  2. Step 2: Convert to fraction form
    243.84/526.92 = 526.92/x
  3. Step 3: Cross multiply
    243.84x = 526.92 × 526.92
  4. Step 4: Simplify right side
    243.84x = 277,646.66
  5. Step 5: Solve for x
    x = 277,646.66/243.84
  6. Step 6: Final answer
    x = 1,138.63

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.