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Finding the Fourth Proportional to 7,293.05, 10,939.04 and 2,849.88

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Solution

The fourth proportional to 7,293.05, 10,939.04 and 2,849.88 is: 4,274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,293.05 : 10,939.04 = 2,849.88 : x
  2. Step 2: Convert to fraction form
    7,293.05/10,939.04 = 2,849.88/x
  3. Step 3: Cross multiply
    7,293.05x = 10,939.04 × 2,849.88
  4. Step 4: Simplify right side
    7,293.05x = 31,174,893.06
  5. Step 5: Solve for x
    x = 31,174,893.06/7,293.05
  6. Step 6: Final answer
    x = 4,274.61

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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.