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Finding the Fourth Proportional to 29,855.54, 44,789.80 and 9,078.50

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Solution

The fourth proportional to 29,855.54, 44,789.80 and 9,078.50 is: 13,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,855.54 : 44,789.80 = 9,078.50 : x
  2. Step 2: Convert to fraction form
    29,855.54/44,789.80 = 9,078.50/x
  3. Step 3: Cross multiply
    29,855.54x = 44,789.80 × 9,078.50
  4. Step 4: Simplify right side
    29,855.54x = 406,624,199.30
  5. Step 5: Solve for x
    x = 406,624,199.30/29,855.54
  6. Step 6: Final answer
    x = 13,619.72

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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.