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Finding the Fourth Proportional to 6,314.91, 8,718.64 and 5,650.61

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Solution

The fourth proportional to 6,314.91, 8,718.64 and 5,650.61 is: 7,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,314.91 : 8,718.64 = 5,650.61 : x
  2. Step 2: Convert to fraction form
    6,314.91/8,718.64 = 5,650.61/x
  3. Step 3: Cross multiply
    6,314.91x = 8,718.64 × 5,650.61
  4. Step 4: Simplify right side
    6,314.91x = 49,265,634.37
  5. Step 5: Solve for x
    x = 49,265,634.37/6,314.91
  6. Step 6: Final answer
    x = 7,801.48

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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.