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Finding the Fourth Proportional to 60,609.09, 90,789.67 and 49,404.36

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Solution

The fourth proportional to 60,609.09, 90,789.67 and 49,404.36 is: 74,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,609.09 : 90,789.67 = 49,404.36 : x
  2. Step 2: Convert to fraction form
    60,609.09/90,789.67 = 49,404.36/x
  3. Step 3: Cross multiply
    60,609.09x = 90,789.67 × 49,404.36
  4. Step 4: Simplify right side
    60,609.09x = 4,485,405,540.96
  5. Step 5: Solve for x
    x = 4,485,405,540.96/60,609.09
  6. Step 6: Final answer
    x = 74,005.49

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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.