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Finding the Fourth Proportional to 69,386.58, 103,986.63 and 36,037.26

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Solution

The fourth proportional to 69,386.58, 103,986.63 and 36,037.26 is: 54,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,386.58 : 103,986.63 = 36,037.26 : x
  2. Step 2: Convert to fraction form
    69,386.58/103,986.63 = 36,037.26/x
  3. Step 3: Cross multiply
    69,386.58x = 103,986.63 × 36,037.26
  4. Step 4: Simplify right side
    69,386.58x = 3,747,393,221.83
  5. Step 5: Solve for x
    x = 3,747,393,221.83/69,386.58
  6. Step 6: Final answer
    x = 54,007.46

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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.