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Finding the Fourth Proportional to 6,422.87, 8,862.13 and 3,733.67

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Solution

The fourth proportional to 6,422.87, 8,862.13 and 3,733.67 is: 5,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.87 : 8,862.13 = 3,733.67 : x
  2. Step 2: Convert to fraction form
    6,422.87/8,862.13 = 3,733.67/x
  3. Step 3: Cross multiply
    6,422.87x = 8,862.13 × 3,733.67
  4. Step 4: Simplify right side
    6,422.87x = 33,088,268.92
  5. Step 5: Solve for x
    x = 33,088,268.92/6,422.87
  6. Step 6: Final answer
    x = 5,151.63

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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.