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Finding the Fourth Proportional to 7,291.36, 10,942.36 and 2,910.06

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Solution

The fourth proportional to 7,291.36, 10,942.36 and 2,910.06 is: 4,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.36 : 10,942.36 = 2,910.06 : x
  2. Step 2: Convert to fraction form
    7,291.36/10,942.36 = 2,910.06/x
  3. Step 3: Cross multiply
    7,291.36x = 10,942.36 × 2,910.06
  4. Step 4: Simplify right side
    7,291.36x = 31,842,924.14
  5. Step 5: Solve for x
    x = 31,842,924.14/7,291.36
  6. Step 6: Final answer
    x = 4,367.21

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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.