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Finding the Fourth Proportional to 6,616.94, 9,905.90 and 5,796.81

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Solution

The fourth proportional to 6,616.94, 9,905.90 and 5,796.81 is: 8,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.94 : 9,905.90 = 5,796.81 : x
  2. Step 2: Convert to fraction form
    6,616.94/9,905.90 = 5,796.81/x
  3. Step 3: Cross multiply
    6,616.94x = 9,905.90 × 5,796.81
  4. Step 4: Simplify right side
    6,616.94x = 57,422,591.19
  5. Step 5: Solve for x
    x = 57,422,591.19/6,616.94
  6. Step 6: Final answer
    x = 8,678.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.