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Finding the Fourth Proportional to 22,400.70, 30,900.09 and 14,002.62

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Solution

The fourth proportional to 22,400.70, 30,900.09 and 14,002.62 is: 19,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400.70 : 30,900.09 = 14,002.62 : x
  2. Step 2: Convert to fraction form
    22,400.70/30,900.09 = 14,002.62/x
  3. Step 3: Cross multiply
    22,400.70x = 30,900.09 × 14,002.62
  4. Step 4: Simplify right side
    22,400.70x = 432,682,218.24
  5. Step 5: Solve for x
    x = 432,682,218.24/22,400.70
  6. Step 6: Final answer
    x = 19,315.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.