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Finding the Fourth Proportional to 3,659.52, 5,047.20 and 3,313.92

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Solution

The fourth proportional to 3,659.52, 5,047.20 and 3,313.92 is: 4,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.52 : 5,047.20 = 3,313.92 : x
  2. Step 2: Convert to fraction form
    3,659.52/5,047.20 = 3,313.92/x
  3. Step 3: Cross multiply
    3,659.52x = 5,047.20 × 3,313.92
  4. Step 4: Simplify right side
    3,659.52x = 16,726,017.02
  5. Step 5: Solve for x
    x = 16,726,017.02/3,659.52
  6. Step 6: Final answer
    x = 4,570.55

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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.