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Finding the Fourth Proportional to 5,621.52, 8,415.86 and 3,274.34

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Solution

The fourth proportional to 5,621.52, 8,415.86 and 3,274.34 is: 4,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.52 : 8,415.86 = 3,274.34 : x
  2. Step 2: Convert to fraction form
    5,621.52/8,415.86 = 3,274.34/x
  3. Step 3: Cross multiply
    5,621.52x = 8,415.86 × 3,274.34
  4. Step 4: Simplify right side
    5,621.52x = 27,556,387.03
  5. Step 5: Solve for x
    x = 27,556,387.03/5,621.52
  6. Step 6: Final answer
    x = 4,901.95

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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.