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Finding the Fourth Proportional to 29,078.84, 43,619.86 and 9,355.96

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Solution

The fourth proportional to 29,078.84, 43,619.86 and 9,355.96 is: 14,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,078.84 : 43,619.86 = 9,355.96 : x
  2. Step 2: Convert to fraction form
    29,078.84/43,619.86 = 9,355.96/x
  3. Step 3: Cross multiply
    29,078.84x = 43,619.86 × 9,355.96
  4. Step 4: Simplify right side
    29,078.84x = 408,105,665.37
  5. Step 5: Solve for x
    x = 408,105,665.37/29,078.84
  6. Step 6: Final answer
    x = 14,034.45

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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.