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Finding the Fourth Proportional to 2,599.09, 3,896.30 and 955.25

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Solution

The fourth proportional to 2,599.09, 3,896.30 and 955.25 is: 1,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.09 : 3,896.30 = 955.25 : x
  2. Step 2: Convert to fraction form
    2,599.09/3,896.30 = 955.25/x
  3. Step 3: Cross multiply
    2,599.09x = 3,896.30 × 955.25
  4. Step 4: Simplify right side
    2,599.09x = 3,721,940.58
  5. Step 5: Solve for x
    x = 3,721,940.58/2,599.09
  6. Step 6: Final answer
    x = 1,432.02

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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.