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Finding the Fourth Proportional to 3,631.05, 5,447.15 and 1,551.06

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Solution

The fourth proportional to 3,631.05, 5,447.15 and 1,551.06 is: 2,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.05 : 5,447.15 = 1,551.06 : x
  2. Step 2: Convert to fraction form
    3,631.05/5,447.15 = 1,551.06/x
  3. Step 3: Cross multiply
    3,631.05x = 5,447.15 × 1,551.06
  4. Step 4: Simplify right side
    3,631.05x = 8,448,856.48
  5. Step 5: Solve for x
    x = 8,448,856.48/3,631.05
  6. Step 6: Final answer
    x = 2,326.84

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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.