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Finding the Fourth Proportional to 13,363.08, 20,051.42 and 5,471.42

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Solution

The fourth proportional to 13,363.08, 20,051.42 and 5,471.42 is: 8,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.08 : 20,051.42 = 5,471.42 : x
  2. Step 2: Convert to fraction form
    13,363.08/20,051.42 = 5,471.42/x
  3. Step 3: Cross multiply
    13,363.08x = 20,051.42 × 5,471.42
  4. Step 4: Simplify right side
    13,363.08x = 109,709,740.42
  5. Step 5: Solve for x
    x = 109,709,740.42/13,363.08
  6. Step 6: Final answer
    x = 8,209.91

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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.