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Finding the Fourth Proportional to 69,382.40, 103,998.96 and 29,958.08

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Solution

The fourth proportional to 69,382.40, 103,998.96 and 29,958.08 is: 44,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,382.40 : 103,998.96 = 29,958.08 : x
  2. Step 2: Convert to fraction form
    69,382.40/103,998.96 = 29,958.08/x
  3. Step 3: Cross multiply
    69,382.40x = 103,998.96 × 29,958.08
  4. Step 4: Simplify right side
    69,382.40x = 3,115,609,163.60
  5. Step 5: Solve for x
    x = 3,115,609,163.60/69,382.40
  6. Step 6: Final answer
    x = 44,904.89

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1.5x scale

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.