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Finding the Fourth Proportional to 11,474.48, 17,220.02 and 4,079

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Solution

The fourth proportional to 11,474.48, 17,220.02 and 4,079 is: 6,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.48 : 17,220.02 = 4,079 : x
  2. Step 2: Convert to fraction form
    11,474.48/17,220.02 = 4,079/x
  3. Step 3: Cross multiply
    11,474.48x = 17,220.02 × 4,079
  4. Step 4: Simplify right side
    11,474.48x = 70,240,461.58
  5. Step 5: Solve for x
    x = 70,240,461.58/11,474.48
  6. Step 6: Final answer
    x = 6,121.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.