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Finding the Fourth Proportional to 4,661.92, 6,434 and 2,799.52

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Solution

The fourth proportional to 4,661.92, 6,434 and 2,799.52 is: 3,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.92 : 6,434 = 2,799.52 : x
  2. Step 2: Convert to fraction form
    4,661.92/6,434 = 2,799.52/x
  3. Step 3: Cross multiply
    4,661.92x = 6,434 × 2,799.52
  4. Step 4: Simplify right side
    4,661.92x = 18,012,111.68
  5. Step 5: Solve for x
    x = 18,012,111.68/4,661.92
  6. Step 6: Final answer
    x = 3,863.67

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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.