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Finding the Fourth Proportional to 3,258.88, 4,495.44 and 2,140

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Solution

The fourth proportional to 3,258.88, 4,495.44 and 2,140 is: 2,952.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.88 : 4,495.44 = 2,140 : x
  2. Step 2: Convert to fraction form
    3,258.88/4,495.44 = 2,140/x
  3. Step 3: Cross multiply
    3,258.88x = 4,495.44 × 2,140
  4. Step 4: Simplify right side
    3,258.88x = 9,620,241.60
  5. Step 5: Solve for x
    x = 9,620,241.60/3,258.88
  6. Step 6: Final answer
    x = 2,952.01

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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.