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Finding the Third Proportional to 5,623.88 and 8,436.38

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Solution

The third proportional to 5,623.88 and 8,436.38 is: 12,655.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.88 : 8,436.38 = 8,436.38 : x
  2. Step 2: Convert to fraction form
    5,623.88/8,436.38 = 8,436.38/x
  3. Step 3: Cross multiply
    5,623.88x = 8,436.38 × 8,436.38
  4. Step 4: Simplify right side
    5,623.88x = 71,172,423.14
  5. Step 5: Solve for x
    x = 71,172,423.14/5,623.88
  6. Step 6: Final answer
    x = 12,655.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.