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Finding the Fourth Proportional to 3,563.27, 4,917.28 and 1,970.02

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Solution

The fourth proportional to 3,563.27, 4,917.28 and 1,970.02 is: 2,718.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.27 : 4,917.28 = 1,970.02 : x
  2. Step 2: Convert to fraction form
    3,563.27/4,917.28 = 1,970.02/x
  3. Step 3: Cross multiply
    3,563.27x = 4,917.28 × 1,970.02
  4. Step 4: Simplify right side
    3,563.27x = 9,687,139.95
  5. Step 5: Solve for x
    x = 9,687,139.95/3,563.27
  6. Step 6: Final answer
    x = 2,718.61

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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.