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Finding the Fourth Proportional to 45,076.65, 67,609.76 and 11,799.92

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Solution

The fourth proportional to 45,076.65, 67,609.76 and 11,799.92 is: 17,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,076.65 : 67,609.76 = 11,799.92 : x
  2. Step 2: Convert to fraction form
    45,076.65/67,609.76 = 11,799.92/x
  3. Step 3: Cross multiply
    45,076.65x = 67,609.76 × 11,799.92
  4. Step 4: Simplify right side
    45,076.65x = 797,789,362.17
  5. Step 5: Solve for x
    x = 797,789,362.17/45,076.65
  6. Step 6: Final answer
    x = 17,698.51

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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.