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Finding the Third Proportional to 983.81 and 1,869.19

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Solution

The third proportional to 983.81 and 1,869.19 is: 3,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.81 : 1,869.19 = 1,869.19 : x
  2. Step 2: Convert to fraction form
    983.81/1,869.19 = 1,869.19/x
  3. Step 3: Cross multiply
    983.81x = 1,869.19 × 1,869.19
  4. Step 4: Simplify right side
    983.81x = 3,493,861.91
  5. Step 5: Solve for x
    x = 3,493,861.91/983.81
  6. Step 6: Final answer
    x = 3,551.35

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.