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Finding the Third Proportional to 846.50 and 1,817

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Solution

The third proportional to 846.50 and 1,817 is: 3,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.50 : 1,817 = 1,817 : x
  2. Step 2: Convert to fraction form
    846.50/1,817 = 1,817/x
  3. Step 3: Cross multiply
    846.50x = 1,817 × 1,817
  4. Step 4: Simplify right side
    846.50x = 3,301,489
  5. Step 5: Solve for x
    x = 3,301,489/846.50
  6. Step 6: Final answer
    x = 3,900.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.