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Finding the Fourth Proportional to 7,896.58, 11,849.02 and 3,220.04

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Solution

The fourth proportional to 7,896.58, 11,849.02 and 3,220.04 is: 4,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.58 : 11,849.02 = 3,220.04 : x
  2. Step 2: Convert to fraction form
    7,896.58/11,849.02 = 3,220.04/x
  3. Step 3: Cross multiply
    7,896.58x = 11,849.02 × 3,220.04
  4. Step 4: Simplify right side
    7,896.58x = 38,154,339.93
  5. Step 5: Solve for x
    x = 38,154,339.93/7,896.58
  6. Step 6: Final answer
    x = 4,831.76

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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.