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Finding the Fourth Proportional to 24,991.87, 34,491.27 and 14,920.21

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Solution

The fourth proportional to 24,991.87, 34,491.27 and 14,920.21 is: 20,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,991.87 : 34,491.27 = 14,920.21 : x
  2. Step 2: Convert to fraction form
    24,991.87/34,491.27 = 14,920.21/x
  3. Step 3: Cross multiply
    24,991.87x = 34,491.27 × 14,920.21
  4. Step 4: Simplify right side
    24,991.87x = 514,616,991.57
  5. Step 5: Solve for x
    x = 514,616,991.57/24,991.87
  6. Step 6: Final answer
    x = 20,591.38

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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.