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Finding the Fourth Proportional to 6,905.11, 9,529.16 and 3,761.30

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Solution

The fourth proportional to 6,905.11, 9,529.16 and 3,761.30 is: 5,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.11 : 9,529.16 = 3,761.30 : x
  2. Step 2: Convert to fraction form
    6,905.11/9,529.16 = 3,761.30/x
  3. Step 3: Cross multiply
    6,905.11x = 9,529.16 × 3,761.30
  4. Step 4: Simplify right side
    6,905.11x = 35,842,029.51
  5. Step 5: Solve for x
    x = 35,842,029.51/6,905.11
  6. Step 6: Final answer
    x = 5,190.65

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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.