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Finding the Fourth Proportional to 69,635.85, 104,440.44 and 19,703.91

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Solution

The fourth proportional to 69,635.85, 104,440.44 and 19,703.91 is: 29,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,635.85 : 104,440.44 = 19,703.91 : x
  2. Step 2: Convert to fraction form
    69,635.85/104,440.44 = 19,703.91/x
  3. Step 3: Cross multiply
    69,635.85x = 104,440.44 × 19,703.91
  4. Step 4: Simplify right side
    69,635.85x = 2,057,885,030.12
  5. Step 5: Solve for x
    x = 2,057,885,030.12/69,635.85
  6. Step 6: Final answer
    x = 29,552.09

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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.