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Finding the Fourth Proportional to 6,608.79, 9,894.15 and 4,389.84

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Solution

The fourth proportional to 6,608.79, 9,894.15 and 4,389.84 is: 6,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.79 : 9,894.15 = 4,389.84 : x
  2. Step 2: Convert to fraction form
    6,608.79/9,894.15 = 4,389.84/x
  3. Step 3: Cross multiply
    6,608.79x = 9,894.15 × 4,389.84
  4. Step 4: Simplify right side
    6,608.79x = 43,433,735.44
  5. Step 5: Solve for x
    x = 43,433,735.44/6,608.79
  6. Step 6: Final answer
    x = 6,572.12

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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.