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Finding the Fourth Proportional to 9,791.08, 13,512.60 and 6,436.60

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Solution

The fourth proportional to 9,791.08, 13,512.60 and 6,436.60 is: 8,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.08 : 13,512.60 = 6,436.60 : x
  2. Step 2: Convert to fraction form
    9,791.08/13,512.60 = 6,436.60/x
  3. Step 3: Cross multiply
    9,791.08x = 13,512.60 × 6,436.60
  4. Step 4: Simplify right side
    9,791.08x = 86,975,201.16
  5. Step 5: Solve for x
    x = 86,975,201.16/9,791.08
  6. Step 6: Final answer
    x = 8,883.11

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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.