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Finding the Third Proportional to 242.75 and 524.13

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Solution

The third proportional to 242.75 and 524.13 is: 1,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.75 : 524.13 = 524.13 : x
  2. Step 2: Convert to fraction form
    242.75/524.13 = 524.13/x
  3. Step 3: Cross multiply
    242.75x = 524.13 × 524.13
  4. Step 4: Simplify right side
    242.75x = 274,707.02
  5. Step 5: Solve for x
    x = 274,707.02/242.75
  6. Step 6: Final answer
    x = 1,131.65

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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.