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Finding the Fourth Proportional to 13,797.52, 20,696.40 and 5,473.84

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Solution

The fourth proportional to 13,797.52, 20,696.40 and 5,473.84 is: 8,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.52 : 20,696.40 = 5,473.84 : x
  2. Step 2: Convert to fraction form
    13,797.52/20,696.40 = 5,473.84/x
  3. Step 3: Cross multiply
    13,797.52x = 20,696.40 × 5,473.84
  4. Step 4: Simplify right side
    13,797.52x = 113,288,782.18
  5. Step 5: Solve for x
    x = 113,288,782.18/13,797.52
  6. Step 6: Final answer
    x = 8,210.81

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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.