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Finding the Third Proportional to 1,974.25 and 4,308.50

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Solution

The third proportional to 1,974.25 and 4,308.50 is: 9,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.25 : 4,308.50 = 4,308.50 : x
  2. Step 2: Convert to fraction form
    1,974.25/4,308.50 = 4,308.50/x
  3. Step 3: Cross multiply
    1,974.25x = 4,308.50 × 4,308.50
  4. Step 4: Simplify right side
    1,974.25x = 18,563,172.25
  5. Step 5: Solve for x
    x = 18,563,172.25/1,974.25
  6. Step 6: Final answer
    x = 9,402.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.