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Finding the Fourth Proportional to 7,342.58, 11,011.04 and 2,661.22

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Solution

The fourth proportional to 7,342.58, 11,011.04 and 2,661.22 is: 3,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.58 : 11,011.04 = 2,661.22 : x
  2. Step 2: Convert to fraction form
    7,342.58/11,011.04 = 2,661.22/x
  3. Step 3: Cross multiply
    7,342.58x = 11,011.04 × 2,661.22
  4. Step 4: Simplify right side
    7,342.58x = 29,302,799.87
  5. Step 5: Solve for x
    x = 29,302,799.87/7,342.58
  6. Step 6: Final answer
    x = 3,990.80

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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.