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Finding the Fourth Proportional to 6,649.84, 9,177.32 and 3,666

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Solution

The fourth proportional to 6,649.84, 9,177.32 and 3,666 is: 5,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.84 : 9,177.32 = 3,666 : x
  2. Step 2: Convert to fraction form
    6,649.84/9,177.32 = 3,666/x
  3. Step 3: Cross multiply
    6,649.84x = 9,177.32 × 3,666
  4. Step 4: Simplify right side
    6,649.84x = 33,644,064.29
  5. Step 5: Solve for x
    x = 33,644,064.29/6,649.84
  6. Step 6: Final answer
    x = 5,059.38

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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.