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Finding the Fourth Proportional to 69,716.54, 104,574.68 and 19,797.10

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Solution

The fourth proportional to 69,716.54, 104,574.68 and 19,797.10 is: 29,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,716.54 : 104,574.68 = 19,797.10 : x
  2. Step 2: Convert to fraction form
    69,716.54/104,574.68 = 19,797.10/x
  3. Step 3: Cross multiply
    69,716.54x = 104,574.68 × 19,797.10
  4. Step 4: Simplify right side
    69,716.54x = 2,070,275,397.43
  5. Step 5: Solve for x
    x = 2,070,275,397.43/69,716.54
  6. Step 6: Final answer
    x = 29,695.61

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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.