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Finding the Fourth Proportional to 29,919.40, 41,289.05 and 16,491.15

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Solution

The fourth proportional to 29,919.40, 41,289.05 and 16,491.15 is: 22,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,919.40 : 41,289.05 = 16,491.15 : x
  2. Step 2: Convert to fraction form
    29,919.40/41,289.05 = 16,491.15/x
  3. Step 3: Cross multiply
    29,919.40x = 41,289.05 × 16,491.15
  4. Step 4: Simplify right side
    29,919.40x = 680,903,958.14
  5. Step 5: Solve for x
    x = 680,903,958.14/29,919.40
  6. Step 6: Final answer
    x = 22,757.94

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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.