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Finding the Fourth Proportional to 7,461.99, 11,198.13 and 3,079.44

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Solution

The fourth proportional to 7,461.99, 11,198.13 and 3,079.44 is: 4,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461.99 : 11,198.13 = 3,079.44 : x
  2. Step 2: Convert to fraction form
    7,461.99/11,198.13 = 3,079.44/x
  3. Step 3: Cross multiply
    7,461.99x = 11,198.13 × 3,079.44
  4. Step 4: Simplify right side
    7,461.99x = 34,483,969.45
  5. Step 5: Solve for x
    x = 34,483,969.45/7,461.99
  6. Step 6: Final answer
    x = 4,621.28

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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.