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Finding the Third Proportional to 4,238 and 4,942

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Solution

The third proportional to 4,238 and 4,942 is: 5,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,238 : 4,942 = 4,942 : x
  2. Step 2: Convert to fraction form
    4,238/4,942 = 4,942/x
  3. Step 3: Cross multiply
    4,238x = 4,942 × 4,942
  4. Step 4: Simplify right side
    4,238x = 24,423,364
  5. Step 5: Solve for x
    x = 24,423,364/4,238
  6. Step 6: Final answer
    x = 5,762.95

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.