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Finding the Fourth Proportional to 69,665.99, 104,498.80 and 19,746.52

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Solution

The fourth proportional to 69,665.99, 104,498.80 and 19,746.52 is: 29,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,665.99 : 104,498.80 = 19,746.52 : x
  2. Step 2: Convert to fraction form
    69,665.99/104,498.80 = 19,746.52/x
  3. Step 3: Cross multiply
    69,665.99x = 104,498.80 × 19,746.52
  4. Step 4: Simplify right side
    69,665.99x = 2,063,487,746.65
  5. Step 5: Solve for x
    x = 2,063,487,746.65/69,665.99
  6. Step 6: Final answer
    x = 29,619.73

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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.