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Finding the Third Proportional to 356.94 and 761.13

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Solution

The third proportional to 356.94 and 761.13 is: 1,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.94 : 761.13 = 761.13 : x
  2. Step 2: Convert to fraction form
    356.94/761.13 = 761.13/x
  3. Step 3: Cross multiply
    356.94x = 761.13 × 761.13
  4. Step 4: Simplify right side
    356.94x = 579,311.27
  5. Step 5: Solve for x
    x = 579,311.27/356.94
  6. Step 6: Final answer
    x = 1,623.00

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.