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Finding the Fourth Proportional to 13,716.08, 20,574.04 and 4,482

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Solution

The fourth proportional to 13,716.08, 20,574.04 and 4,482 is: 6,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.08 : 20,574.04 = 4,482 : x
  2. Step 2: Convert to fraction form
    13,716.08/20,574.04 = 4,482/x
  3. Step 3: Cross multiply
    13,716.08x = 20,574.04 × 4,482
  4. Step 4: Simplify right side
    13,716.08x = 92,212,847.28
  5. Step 5: Solve for x
    x = 92,212,847.28/13,716.08
  6. Step 6: Final answer
    x = 6,722.97

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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.