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Finding the Fourth Proportional to 11,800.11, 17,700.59 and 4,007.91

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Solution

The fourth proportional to 11,800.11, 17,700.59 and 4,007.91 is: 6,012.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.11 : 17,700.59 = 4,007.91 : x
  2. Step 2: Convert to fraction form
    11,800.11/17,700.59 = 4,007.91/x
  3. Step 3: Cross multiply
    11,800.11x = 17,700.59 × 4,007.91
  4. Step 4: Simplify right side
    11,800.11x = 70,942,351.63
  5. Step 5: Solve for x
    x = 70,942,351.63/11,800.11
  6. Step 6: Final answer
    x = 6,012.01

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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.