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Finding the Fourth Proportional to 2,910.13, 4,016.07 and 1,583.92

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Solution

The fourth proportional to 2,910.13, 4,016.07 and 1,583.92 is: 2,185.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.13 : 4,016.07 = 1,583.92 : x
  2. Step 2: Convert to fraction form
    2,910.13/4,016.07 = 1,583.92/x
  3. Step 3: Cross multiply
    2,910.13x = 4,016.07 × 1,583.92
  4. Step 4: Simplify right side
    2,910.13x = 6,361,133.59
  5. Step 5: Solve for x
    x = 6,361,133.59/2,910.13
  6. Step 6: Final answer
    x = 2,185.86

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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.