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Finding the Third Proportional to 5,406.75 and 8,265.38

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Solution

The third proportional to 5,406.75 and 8,265.38 is: 12,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.75 : 8,265.38 = 8,265.38 : x
  2. Step 2: Convert to fraction form
    5,406.75/8,265.38 = 8,265.38/x
  3. Step 3: Cross multiply
    5,406.75x = 8,265.38 × 8,265.38
  4. Step 4: Simplify right side
    5,406.75x = 68,316,423.89
  5. Step 5: Solve for x
    x = 68,316,423.89/5,406.75
  6. Step 6: Final answer
    x = 12,635.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.