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Finding the Fourth Proportional to 6,270.39, 8,647.11 and 4,851.87

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Solution

The fourth proportional to 6,270.39, 8,647.11 and 4,851.87 is: 6,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.39 : 8,647.11 = 4,851.87 : x
  2. Step 2: Convert to fraction form
    6,270.39/8,647.11 = 4,851.87/x
  3. Step 3: Cross multiply
    6,270.39x = 8,647.11 × 4,851.87
  4. Step 4: Simplify right side
    6,270.39x = 41,954,653.60
  5. Step 5: Solve for x
    x = 41,954,653.60/6,270.39
  6. Step 6: Final answer
    x = 6,690.92

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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.