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Finding the Fourth Proportional to 2,093.77, 3,140.78 and 708.02

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Solution

The fourth proportional to 2,093.77, 3,140.78 and 708.02 is: 1,062.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.77 : 3,140.78 = 708.02 : x
  2. Step 2: Convert to fraction form
    2,093.77/3,140.78 = 708.02/x
  3. Step 3: Cross multiply
    2,093.77x = 3,140.78 × 708.02
  4. Step 4: Simplify right side
    2,093.77x = 2,223,718.76
  5. Step 5: Solve for x
    x = 2,223,718.76/2,093.77
  6. Step 6: Final answer
    x = 1,062.06

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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.