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Finding the Third Proportional to 1,423 and 3,089

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Solution

The third proportional to 1,423 and 3,089 is: 6,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423 : 3,089 = 3,089 : x
  2. Step 2: Convert to fraction form
    1,423/3,089 = 3,089/x
  3. Step 3: Cross multiply
    1,423x = 3,089 × 3,089
  4. Step 4: Simplify right side
    1,423x = 9,541,921
  5. Step 5: Solve for x
    x = 9,541,921/1,423
  6. Step 6: Final answer
    x = 6,705.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.