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Finding the Third Proportional to 18,376.88 and 28,647.42

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Solution

The third proportional to 18,376.88 and 28,647.42 is: 44,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.88 : 28,647.42 = 28,647.42 : x
  2. Step 2: Convert to fraction form
    18,376.88/28,647.42 = 28,647.42/x
  3. Step 3: Cross multiply
    18,376.88x = 28,647.42 × 28,647.42
  4. Step 4: Simplify right side
    18,376.88x = 820,674,780.08
  5. Step 5: Solve for x
    x = 820,674,780.08/18,376.88
  6. Step 6: Final answer
    x = 44,658.02

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.