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Finding the Fourth Proportional to 5,692.60, 8,538.90 and 3,724.30

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Solution

The fourth proportional to 5,692.60, 8,538.90 and 3,724.30 is: 5,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.60 : 8,538.90 = 3,724.30 : x
  2. Step 2: Convert to fraction form
    5,692.60/8,538.90 = 3,724.30/x
  3. Step 3: Cross multiply
    5,692.60x = 8,538.90 × 3,724.30
  4. Step 4: Simplify right side
    5,692.60x = 31,801,425.27
  5. Step 5: Solve for x
    x = 31,801,425.27/5,692.60
  6. Step 6: Final answer
    x = 5,586.45

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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.