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Finding the Fourth Proportional to 3,913.83, 5,871.95 and 3,500.32

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Solution

The fourth proportional to 3,913.83, 5,871.95 and 3,500.32 is: 5,251.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.83 : 5,871.95 = 3,500.32 : x
  2. Step 2: Convert to fraction form
    3,913.83/5,871.95 = 3,500.32/x
  3. Step 3: Cross multiply
    3,913.83x = 5,871.95 × 3,500.32
  4. Step 4: Simplify right side
    3,913.83x = 20,553,704.02
  5. Step 5: Solve for x
    x = 20,553,704.02/3,913.83
  6. Step 6: Final answer
    x = 5,251.56

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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.