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Finding the Fourth Proportional to 6,651.78, 9,963.63 and 4,011.05

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Solution

The fourth proportional to 6,651.78, 9,963.63 and 4,011.05 is: 6,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.78 : 9,963.63 = 4,011.05 : x
  2. Step 2: Convert to fraction form
    6,651.78/9,963.63 = 4,011.05/x
  3. Step 3: Cross multiply
    6,651.78x = 9,963.63 × 4,011.05
  4. Step 4: Simplify right side
    6,651.78x = 39,964,568.29
  5. Step 5: Solve for x
    x = 39,964,568.29/6,651.78
  6. Step 6: Final answer
    x = 6,008.10

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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.