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Finding the Fourth Proportional to 3,608.99, 4,979.98 and 2,036.98

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Solution

The fourth proportional to 3,608.99, 4,979.98 and 2,036.98 is: 2,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.99 : 4,979.98 = 2,036.98 : x
  2. Step 2: Convert to fraction form
    3,608.99/4,979.98 = 2,036.98/x
  3. Step 3: Cross multiply
    3,608.99x = 4,979.98 × 2,036.98
  4. Step 4: Simplify right side
    3,608.99x = 10,144,119.66
  5. Step 5: Solve for x
    x = 10,144,119.66/3,608.99
  6. Step 6: Final answer
    x = 2,810.79

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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.