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Finding the Fourth Proportional to 8,871.51, 13,308.11 and 3,328.82

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Solution

The fourth proportional to 8,871.51, 13,308.11 and 3,328.82 is: 4,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.51 : 13,308.11 = 3,328.82 : x
  2. Step 2: Convert to fraction form
    8,871.51/13,308.11 = 3,328.82/x
  3. Step 3: Cross multiply
    8,871.51x = 13,308.11 × 3,328.82
  4. Step 4: Simplify right side
    8,871.51x = 44,300,302.73
  5. Step 5: Solve for x
    x = 44,300,302.73/8,871.51
  6. Step 6: Final answer
    x = 4,993.55

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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.