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Finding the Fourth Proportional to 11,798.91, 17,701.10 and 4,007.72

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Solution

The fourth proportional to 11,798.91, 17,701.10 and 4,007.72 is: 6,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.91 : 17,701.10 = 4,007.72 : x
  2. Step 2: Convert to fraction form
    11,798.91/17,701.10 = 4,007.72/x
  3. Step 3: Cross multiply
    11,798.91x = 17,701.10 × 4,007.72
  4. Step 4: Simplify right side
    11,798.91x = 70,940,943.95
  5. Step 5: Solve for x
    x = 70,940,943.95/11,798.91
  6. Step 6: Final answer
    x = 6,012.50

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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.