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Finding the Third Proportional to 14,740 and 20,435

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Solution

The third proportional to 14,740 and 20,435 is: 28,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740 : 20,435 = 20,435 : x
  2. Step 2: Convert to fraction form
    14,740/20,435 = 20,435/x
  3. Step 3: Cross multiply
    14,740x = 20,435 × 20,435
  4. Step 4: Simplify right side
    14,740x = 417,589,225
  5. Step 5: Solve for x
    x = 417,589,225/14,740
  6. Step 6: Final answer
    x = 28,330.34

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.