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Finding the Fourth Proportional to 11,491.61, 17,235.72 and 3,699.41

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Solution

The fourth proportional to 11,491.61, 17,235.72 and 3,699.41 is: 5,548.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.61 : 17,235.72 = 3,699.41 : x
  2. Step 2: Convert to fraction form
    11,491.61/17,235.72 = 3,699.41/x
  3. Step 3: Cross multiply
    11,491.61x = 17,235.72 × 3,699.41
  4. Step 4: Simplify right side
    11,491.61x = 63,761,908.75
  5. Step 5: Solve for x
    x = 63,761,908.75/11,491.61
  6. Step 6: Final answer
    x = 5,548.56

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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.