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Finding the Fourth Proportional to 4,092.40, 5,651.40 and 3,347.20

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Solution

The fourth proportional to 4,092.40, 5,651.40 and 3,347.20 is: 4,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.40 : 5,651.40 = 3,347.20 : x
  2. Step 2: Convert to fraction form
    4,092.40/5,651.40 = 3,347.20/x
  3. Step 3: Cross multiply
    4,092.40x = 5,651.40 × 3,347.20
  4. Step 4: Simplify right side
    4,092.40x = 18,916,366.08
  5. Step 5: Solve for x
    x = 18,916,366.08/4,092.40
  6. Step 6: Final answer
    x = 4,622.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.