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Finding the Fourth Proportional to 6,881.36, 9,495.59 and 3,896.60

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Solution

The fourth proportional to 6,881.36, 9,495.59 and 3,896.60 is: 5,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.36 : 9,495.59 = 3,896.60 : x
  2. Step 2: Convert to fraction form
    6,881.36/9,495.59 = 3,896.60/x
  3. Step 3: Cross multiply
    6,881.36x = 9,495.59 × 3,896.60
  4. Step 4: Simplify right side
    6,881.36x = 37,000,449.03
  5. Step 5: Solve for x
    x = 37,000,449.03/6,881.36
  6. Step 6: Final answer
    x = 5,376.91

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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.