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Finding the Fourth Proportional to 5,604.28, 7,734.08 and 3,086.47

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Solution

The fourth proportional to 5,604.28, 7,734.08 and 3,086.47 is: 4,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.28 : 7,734.08 = 3,086.47 : x
  2. Step 2: Convert to fraction form
    5,604.28/7,734.08 = 3,086.47/x
  3. Step 3: Cross multiply
    5,604.28x = 7,734.08 × 3,086.47
  4. Step 4: Simplify right side
    5,604.28x = 23,871,005.90
  5. Step 5: Solve for x
    x = 23,871,005.90/5,604.28
  6. Step 6: Final answer
    x = 4,259.42

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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.