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Finding the Fourth Proportional to 3,276.64, 4,889.78 and 2,926.31

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Solution

The fourth proportional to 3,276.64, 4,889.78 and 2,926.31 is: 4,366.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.64 : 4,889.78 = 2,926.31 : x
  2. Step 2: Convert to fraction form
    3,276.64/4,889.78 = 2,926.31/x
  3. Step 3: Cross multiply
    3,276.64x = 4,889.78 × 2,926.31
  4. Step 4: Simplify right side
    3,276.64x = 14,309,031.65
  5. Step 5: Solve for x
    x = 14,309,031.65/3,276.64
  6. Step 6: Final answer
    x = 4,366.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.