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Finding the Fourth Proportional to 69,405.80, 95,778.86 and 37,574.44

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Solution

The fourth proportional to 69,405.80, 95,778.86 and 37,574.44 is: 51,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,405.80 : 95,778.86 = 37,574.44 : x
  2. Step 2: Convert to fraction form
    69,405.80/95,778.86 = 37,574.44/x
  3. Step 3: Cross multiply
    69,405.80x = 95,778.86 × 37,574.44
  4. Step 4: Simplify right side
    69,405.80x = 3,598,837,028.34
  5. Step 5: Solve for x
    x = 3,598,837,028.34/69,405.80
  6. Step 6: Final answer
    x = 51,852.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.