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Finding the Fourth Proportional to 8,396.84, 11,587.63 and 4,619.92

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Solution

The fourth proportional to 8,396.84, 11,587.63 and 4,619.92 is: 6,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.84 : 11,587.63 = 4,619.92 : x
  2. Step 2: Convert to fraction form
    8,396.84/11,587.63 = 4,619.92/x
  3. Step 3: Cross multiply
    8,396.84x = 11,587.63 × 4,619.92
  4. Step 4: Simplify right side
    8,396.84x = 53,533,842.55
  5. Step 5: Solve for x
    x = 53,533,842.55/8,396.84
  6. Step 6: Final answer
    x = 6,375.48

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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.