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Finding the Third Proportional to 906 and 1,798

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Solution

The third proportional to 906 and 1,798 is: 3,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    906 : 1,798 = 1,798 : x
  2. Step 2: Convert to fraction form
    906/1,798 = 1,798/x
  3. Step 3: Cross multiply
    906x = 1,798 × 1,798
  4. Step 4: Simplify right side
    906x = 3,232,804
  5. Step 5: Solve for x
    x = 3,232,804/906
  6. Step 6: Final answer
    x = 3,568.22

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.