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Finding the Third Proportional to 539.63 and 994.13

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Solution

The third proportional to 539.63 and 994.13 is: 1,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.63 : 994.13 = 994.13 : x
  2. Step 2: Convert to fraction form
    539.63/994.13 = 994.13/x
  3. Step 3: Cross multiply
    539.63x = 994.13 × 994.13
  4. Step 4: Simplify right side
    539.63x = 988,284.52
  5. Step 5: Solve for x
    x = 988,284.52/539.63
  6. Step 6: Final answer
    x = 1,831.43

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.