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Finding the Fourth Proportional to 8,881.92, 13,317.98 and 3,615.58

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Solution

The fourth proportional to 8,881.92, 13,317.98 and 3,615.58 is: 5,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.92 : 13,317.98 = 3,615.58 : x
  2. Step 2: Convert to fraction form
    8,881.92/13,317.98 = 3,615.58/x
  3. Step 3: Cross multiply
    8,881.92x = 13,317.98 × 3,615.58
  4. Step 4: Simplify right side
    8,881.92x = 48,152,179.79
  5. Step 5: Solve for x
    x = 48,152,179.79/8,881.92
  6. Step 6: Final answer
    x = 5,421.37

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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.