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Finding the Fourth Proportional to 13,692.48, 20,544.92 and 5,797.12

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Solution

The fourth proportional to 13,692.48, 20,544.92 and 5,797.12 is: 8,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.48 : 20,544.92 = 5,797.12 : x
  2. Step 2: Convert to fraction form
    13,692.48/20,544.92 = 5,797.12/x
  3. Step 3: Cross multiply
    13,692.48x = 20,544.92 × 5,797.12
  4. Step 4: Simplify right side
    13,692.48x = 119,101,366.63
  5. Step 5: Solve for x
    x = 119,101,366.63/13,692.48
  6. Step 6: Final answer
    x = 8,698.30

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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.