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Finding the Fourth Proportional to 69,087.92, 103,620.80 and 24,706.40

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Solution

The fourth proportional to 69,087.92, 103,620.80 and 24,706.40 is: 37,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,087.92 : 103,620.80 = 24,706.40 : x
  2. Step 2: Convert to fraction form
    69,087.92/103,620.80 = 24,706.40/x
  3. Step 3: Cross multiply
    69,087.92x = 103,620.80 × 24,706.40
  4. Step 4: Simplify right side
    69,087.92x = 2,560,096,933.12
  5. Step 5: Solve for x
    x = 2,560,096,933.12/69,087.92
  6. Step 6: Final answer
    x = 37,055.64

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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.