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Finding the Fourth Proportional to 2,963.99, 4,445.98 and 2,783.56

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Solution

The fourth proportional to 2,963.99, 4,445.98 and 2,783.56 is: 4,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.99 : 4,445.98 = 2,783.56 : x
  2. Step 2: Convert to fraction form
    2,963.99/4,445.98 = 2,783.56/x
  3. Step 3: Cross multiply
    2,963.99x = 4,445.98 × 2,783.56
  4. Step 4: Simplify right side
    2,963.99x = 12,375,634.01
  5. Step 5: Solve for x
    x = 12,375,634.01/2,963.99
  6. Step 6: Final answer
    x = 4,175.34

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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.