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Finding the Third Proportional to 1,355.91 and 1,823.13

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Solution

The third proportional to 1,355.91 and 1,823.13 is: 2,451.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.91 : 1,823.13 = 1,823.13 : x
  2. Step 2: Convert to fraction form
    1,355.91/1,823.13 = 1,823.13/x
  3. Step 3: Cross multiply
    1,355.91x = 1,823.13 × 1,823.13
  4. Step 4: Simplify right side
    1,355.91x = 3,323,813.25
  5. Step 5: Solve for x
    x = 3,323,813.25/1,355.91
  6. Step 6: Final answer
    x = 2,451.36

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.