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Finding the Fourth Proportional to 13,874.18, 20,805.08 and 4,011.11

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Solution

The fourth proportional to 13,874.18, 20,805.08 and 4,011.11 is: 6,014.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.18 : 20,805.08 = 4,011.11 : x
  2. Step 2: Convert to fraction form
    13,874.18/20,805.08 = 4,011.11/x
  3. Step 3: Cross multiply
    13,874.18x = 20,805.08 × 4,011.11
  4. Step 4: Simplify right side
    13,874.18x = 83,451,340.36
  5. Step 5: Solve for x
    x = 83,451,340.36/13,874.18
  6. Step 6: Final answer
    x = 6,014.87

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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.