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Finding the Fourth Proportional to 69,986.32, 104,957.94 and 20,053.04

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Solution

The fourth proportional to 69,986.32, 104,957.94 and 20,053.04 is: 30,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,986.32 : 104,957.94 = 20,053.04 : x
  2. Step 2: Convert to fraction form
    69,986.32/104,957.94 = 20,053.04/x
  3. Step 3: Cross multiply
    69,986.32x = 104,957.94 × 20,053.04
  4. Step 4: Simplify right side
    69,986.32x = 2,104,725,244.35
  5. Step 5: Solve for x
    x = 2,104,725,244.35/69,986.32
  6. Step 6: Final answer
    x = 30,073.38

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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.