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Finding the Fourth Proportional to 69,559.76, 104,340.74 and 16,970.24

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Solution

The fourth proportional to 69,559.76, 104,340.74 and 16,970.24 is: 25,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,559.76 : 104,340.74 = 16,970.24 : x
  2. Step 2: Convert to fraction form
    69,559.76/104,340.74 = 16,970.24/x
  3. Step 3: Cross multiply
    69,559.76x = 104,340.74 × 16,970.24
  4. Step 4: Simplify right side
    69,559.76x = 1,770,687,399.58
  5. Step 5: Solve for x
    x = 1,770,687,399.58/69,559.76
  6. Step 6: Final answer
    x = 25,455.63

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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.