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Finding the Fourth Proportional to 3,596.63, 5,387.76 and 2,857.49

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Solution

The fourth proportional to 3,596.63, 5,387.76 and 2,857.49 is: 4,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.63 : 5,387.76 = 2,857.49 : x
  2. Step 2: Convert to fraction form
    3,596.63/5,387.76 = 2,857.49/x
  3. Step 3: Cross multiply
    3,596.63x = 5,387.76 × 2,857.49
  4. Step 4: Simplify right side
    3,596.63x = 15,395,470.32
  5. Step 5: Solve for x
    x = 15,395,470.32/3,596.63
  6. Step 6: Final answer
    x = 4,280.53

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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.