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Finding the Third Proportional to 9,919.50 and 14,337

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Solution

The third proportional to 9,919.50 and 14,337 is: 20,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.50 : 14,337 = 14,337 : x
  2. Step 2: Convert to fraction form
    9,919.50/14,337 = 14,337/x
  3. Step 3: Cross multiply
    9,919.50x = 14,337 × 14,337
  4. Step 4: Simplify right side
    9,919.50x = 205,549,569
  5. Step 5: Solve for x
    x = 205,549,569/9,919.50
  6. Step 6: Final answer
    x = 20,721.77

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.