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Finding the Fourth Proportional to 69,480.52, 104,213.86 and 19,559.48

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Solution

The fourth proportional to 69,480.52, 104,213.86 and 19,559.48 is: 29,337.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,480.52 : 104,213.86 = 19,559.48 : x
  2. Step 2: Convert to fraction form
    69,480.52/104,213.86 = 19,559.48/x
  3. Step 3: Cross multiply
    69,480.52x = 104,213.86 × 19,559.48
  4. Step 4: Simplify right side
    69,480.52x = 2,038,368,340.42
  5. Step 5: Solve for x
    x = 2,038,368,340.42/69,480.52
  6. Step 6: Final answer
    x = 29,337.26

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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.