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Finding the Fourth Proportional to 6,610.82, 9,916.15 and 2,231.35

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Solution

The fourth proportional to 6,610.82, 9,916.15 and 2,231.35 is: 3,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.82 : 9,916.15 = 2,231.35 : x
  2. Step 2: Convert to fraction form
    6,610.82/9,916.15 = 2,231.35/x
  3. Step 3: Cross multiply
    6,610.82x = 9,916.15 × 2,231.35
  4. Step 4: Simplify right side
    6,610.82x = 22,126,368.84
  5. Step 5: Solve for x
    x = 22,126,368.84/6,610.82
  6. Step 6: Final answer
    x = 3,347.00

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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.