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Finding the Third Proportional to 5,406.75 and 7,008.19

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Solution

The third proportional to 5,406.75 and 7,008.19 is: 9,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.75 : 7,008.19 = 7,008.19 : x
  2. Step 2: Convert to fraction form
    5,406.75/7,008.19 = 7,008.19/x
  3. Step 3: Cross multiply
    5,406.75x = 7,008.19 × 7,008.19
  4. Step 4: Simplify right side
    5,406.75x = 49,114,692.04
  5. Step 5: Solve for x
    x = 49,114,692.04/5,406.75
  6. Step 6: Final answer
    x = 9,083.96

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.