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Finding the Fourth Proportional to 55,245.96, 82,868.90 and 13,692.96

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Solution

The fourth proportional to 55,245.96, 82,868.90 and 13,692.96 is: 20,539.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,245.96 : 82,868.90 = 13,692.96 : x
  2. Step 2: Convert to fraction form
    55,245.96/82,868.90 = 13,692.96/x
  3. Step 3: Cross multiply
    55,245.96x = 82,868.90 × 13,692.96
  4. Step 4: Simplify right side
    55,245.96x = 1,134,720,464.48
  5. Step 5: Solve for x
    x = 1,134,720,464.48/55,245.96
  6. Step 6: Final answer
    x = 20,539.43

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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.