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Finding the Fourth Proportional to 22,958.81, 34,438.22 and 9,107.81

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Solution

The fourth proportional to 22,958.81, 34,438.22 and 9,107.81 is: 13,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,958.81 : 34,438.22 = 9,107.81 : x
  2. Step 2: Convert to fraction form
    22,958.81/34,438.22 = 9,107.81/x
  3. Step 3: Cross multiply
    22,958.81x = 34,438.22 × 9,107.81
  4. Step 4: Simplify right side
    22,958.81x = 313,656,839.21
  5. Step 5: Solve for x
    x = 313,656,839.21/22,958.81
  6. Step 6: Final answer
    x = 13,661.72

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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.