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Finding the Third Proportional to 885 and 2,386.50

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Solution

The third proportional to 885 and 2,386.50 is: 6,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    885 : 2,386.50 = 2,386.50 : x
  2. Step 2: Convert to fraction form
    885/2,386.50 = 2,386.50/x
  3. Step 3: Cross multiply
    885x = 2,386.50 × 2,386.50
  4. Step 4: Simplify right side
    885x = 5,695,382.25
  5. Step 5: Solve for x
    x = 5,695,382.25/885
  6. Step 6: Final answer
    x = 6,435.46

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.