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Finding the Fourth Proportional to 11,491.01, 17,237.50 and 3,171.02

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Solution

The fourth proportional to 11,491.01, 17,237.50 and 3,171.02 is: 4,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.01 : 17,237.50 = 3,171.02 : x
  2. Step 2: Convert to fraction form
    11,491.01/17,237.50 = 3,171.02/x
  3. Step 3: Cross multiply
    11,491.01x = 17,237.50 × 3,171.02
  4. Step 4: Simplify right side
    11,491.01x = 54,660,526.41
  5. Step 5: Solve for x
    x = 54,660,526.41/11,491.01
  6. Step 6: Final answer
    x = 4,756.81

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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.