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Finding the Fourth Proportional to 6,273.36, 8,655.12 and 3,914.64

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Solution

The fourth proportional to 6,273.36, 8,655.12 and 3,914.64 is: 5,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,273.36 : 8,655.12 = 3,914.64 : x
  2. Step 2: Convert to fraction form
    6,273.36/8,655.12 = 3,914.64/x
  3. Step 3: Cross multiply
    6,273.36x = 8,655.12 × 3,914.64
  4. Step 4: Simplify right side
    6,273.36x = 33,881,678.96
  5. Step 5: Solve for x
    x = 33,881,678.96/6,273.36
  6. Step 6: Final answer
    x = 5,400.88

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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.