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Finding the Fourth Proportional to 8,101.71, 11,107.41 and 7,954.11

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Solution

The fourth proportional to 8,101.71, 11,107.41 and 7,954.11 is: 10,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.71 : 11,107.41 = 7,954.11 : x
  2. Step 2: Convert to fraction form
    8,101.71/11,107.41 = 7,954.11/x
  3. Step 3: Cross multiply
    8,101.71x = 11,107.41 × 7,954.11
  4. Step 4: Simplify right side
    8,101.71x = 88,349,560.96
  5. Step 5: Solve for x
    x = 88,349,560.96/8,101.71
  6. Step 6: Final answer
    x = 10,905.05

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.