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Finding the Fourth Proportional to 69,481.98, 104,229.12 and 19,562.51

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Solution

The fourth proportional to 69,481.98, 104,229.12 and 19,562.51 is: 29,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.98 : 104,229.12 = 19,562.51 : x
  2. Step 2: Convert to fraction form
    69,481.98/104,229.12 = 19,562.51/x
  3. Step 3: Cross multiply
    69,481.98x = 104,229.12 × 19,562.51
  4. Step 4: Simplify right side
    69,481.98x = 2,038,982,681.15
  5. Step 5: Solve for x
    x = 2,038,982,681.15/69,481.98
  6. Step 6: Final answer
    x = 29,345.49

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1.5x scale

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.