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Finding the Fourth Proportional to 3,672.07, 5,507.39 and 1,039.55

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Solution

The fourth proportional to 3,672.07, 5,507.39 and 1,039.55 is: 1,559.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.07 : 5,507.39 = 1,039.55 : x
  2. Step 2: Convert to fraction form
    3,672.07/5,507.39 = 1,039.55/x
  3. Step 3: Cross multiply
    3,672.07x = 5,507.39 × 1,039.55
  4. Step 4: Simplify right side
    3,672.07x = 5,725,207.27
  5. Step 5: Solve for x
    x = 5,725,207.27/3,672.07
  6. Step 6: Final answer
    x = 1,559.12

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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.