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Finding the Fourth Proportional to 22,919.70, 34,401.15 and 14,171.70

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Solution

The fourth proportional to 22,919.70, 34,401.15 and 14,171.70 is: 21,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,919.70 : 34,401.15 = 14,171.70 : x
  2. Step 2: Convert to fraction form
    22,919.70/34,401.15 = 14,171.70/x
  3. Step 3: Cross multiply
    22,919.70x = 34,401.15 × 14,171.70
  4. Step 4: Simplify right side
    22,919.70x = 487,522,777.46
  5. Step 5: Solve for x
    x = 487,522,777.46/22,919.70
  6. Step 6: Final answer
    x = 21,270.91

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1.5x scale

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.