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Finding the Fourth Proportional to 4,789.75, 6,609.79 and 2,693.88

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Solution

The fourth proportional to 4,789.75, 6,609.79 and 2,693.88 is: 3,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.75 : 6,609.79 = 2,693.88 : x
  2. Step 2: Convert to fraction form
    4,789.75/6,609.79 = 2,693.88/x
  3. Step 3: Cross multiply
    4,789.75x = 6,609.79 × 2,693.88
  4. Step 4: Simplify right side
    4,789.75x = 17,805,981.09
  5. Step 5: Solve for x
    x = 17,805,981.09/4,789.75
  6. Step 6: Final answer
    x = 3,717.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.