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Finding the Fourth Proportional to 3,692.76, 5,117.99 and 3,623.64

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Solution

The fourth proportional to 3,692.76, 5,117.99 and 3,623.64 is: 5,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.76 : 5,117.99 = 3,623.64 : x
  2. Step 2: Convert to fraction form
    3,692.76/5,117.99 = 3,623.64/x
  3. Step 3: Cross multiply
    3,692.76x = 5,117.99 × 3,623.64
  4. Step 4: Simplify right side
    3,692.76x = 18,545,753.28
  5. Step 5: Solve for x
    x = 18,545,753.28/3,692.76
  6. Step 6: Final answer
    x = 5,022.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.