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Finding the Fourth Proportional to 6,316.56, 8,716.14 and 3,663

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Solution

The fourth proportional to 6,316.56, 8,716.14 and 3,663 is: 5,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.56 : 8,716.14 = 3,663 : x
  2. Step 2: Convert to fraction form
    6,316.56/8,716.14 = 3,663/x
  3. Step 3: Cross multiply
    6,316.56x = 8,716.14 × 3,663
  4. Step 4: Simplify right side
    6,316.56x = 31,927,220.82
  5. Step 5: Solve for x
    x = 31,927,220.82/6,316.56
  6. Step 6: Final answer
    x = 5,054.53

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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.