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Finding the Fourth Proportional to 69,907.80, 104,865.36 and 25,548.16

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Solution

The fourth proportional to 69,907.80, 104,865.36 and 25,548.16 is: 38,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,907.80 : 104,865.36 = 25,548.16 : x
  2. Step 2: Convert to fraction form
    69,907.80/104,865.36 = 25,548.16/x
  3. Step 3: Cross multiply
    69,907.80x = 104,865.36 × 25,548.16
  4. Step 4: Simplify right side
    69,907.80x = 2,679,116,995.74
  5. Step 5: Solve for x
    x = 2,679,116,995.74/69,907.80
  6. Step 6: Final answer
    x = 38,323.58

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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.