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Finding the Fourth Proportional to 69,889.15, 104,839.80 and 22,509.01

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Solution

The fourth proportional to 69,889.15, 104,839.80 and 22,509.01 is: 33,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,889.15 : 104,839.80 = 22,509.01 : x
  2. Step 2: Convert to fraction form
    69,889.15/104,839.80 = 22,509.01/x
  3. Step 3: Cross multiply
    69,889.15x = 104,839.80 × 22,509.01
  4. Step 4: Simplify right side
    69,889.15x = 2,359,840,106.60
  5. Step 5: Solve for x
    x = 2,359,840,106.60/69,889.15
  6. Step 6: Final answer
    x = 33,765.47

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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.