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Finding the Fourth Proportional to 6,859.72, 10,292.53 and 2,913.64

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Solution

The fourth proportional to 6,859.72, 10,292.53 and 2,913.64 is: 4,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.72 : 10,292.53 = 2,913.64 : x
  2. Step 2: Convert to fraction form
    6,859.72/10,292.53 = 2,913.64/x
  3. Step 3: Cross multiply
    6,859.72x = 10,292.53 × 2,913.64
  4. Step 4: Simplify right side
    6,859.72x = 29,988,678.97
  5. Step 5: Solve for x
    x = 29,988,678.97/6,859.72
  6. Step 6: Final answer
    x = 4,371.71

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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.