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Finding the Fourth Proportional to 3,274.83, 4,913.21 and 1,889.16

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Solution

The fourth proportional to 3,274.83, 4,913.21 and 1,889.16 is: 2,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.83 : 4,913.21 = 1,889.16 : x
  2. Step 2: Convert to fraction form
    3,274.83/4,913.21 = 1,889.16/x
  3. Step 3: Cross multiply
    3,274.83x = 4,913.21 × 1,889.16
  4. Step 4: Simplify right side
    3,274.83x = 9,281,839.80
  5. Step 5: Solve for x
    x = 9,281,839.80/3,274.83
  6. Step 6: Final answer
    x = 2,834.30

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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.