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Finding the Fourth Proportional to 29,239.79, 43,862.47 and 8,179.84

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Solution

The fourth proportional to 29,239.79, 43,862.47 and 8,179.84 is: 12,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,239.79 : 43,862.47 = 8,179.84 : x
  2. Step 2: Convert to fraction form
    29,239.79/43,862.47 = 8,179.84/x
  3. Step 3: Cross multiply
    29,239.79x = 43,862.47 × 8,179.84
  4. Step 4: Simplify right side
    29,239.79x = 358,787,856.50
  5. Step 5: Solve for x
    x = 358,787,856.50/29,239.79
  6. Step 6: Final answer
    x = 12,270.53

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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.