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Finding the Fourth Proportional to 5,869.82, 8,805.12 and 2,171.96

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Solution

The fourth proportional to 5,869.82, 8,805.12 and 2,171.96 is: 3,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.82 : 8,805.12 = 2,171.96 : x
  2. Step 2: Convert to fraction form
    5,869.82/8,805.12 = 2,171.96/x
  3. Step 3: Cross multiply
    5,869.82x = 8,805.12 × 2,171.96
  4. Step 4: Simplify right side
    5,869.82x = 19,124,368.44
  5. Step 5: Solve for x
    x = 19,124,368.44/5,869.82
  6. Step 6: Final answer
    x = 3,258.08

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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.