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Finding the Fourth Proportional to 11,073.60, 16,612.20 and 3,676.50

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Solution

The fourth proportional to 11,073.60, 16,612.20 and 3,676.50 is: 5,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.60 : 16,612.20 = 3,676.50 : x
  2. Step 2: Convert to fraction form
    11,073.60/16,612.20 = 3,676.50/x
  3. Step 3: Cross multiply
    11,073.60x = 16,612.20 × 3,676.50
  4. Step 4: Simplify right side
    11,073.60x = 61,074,753.30
  5. Step 5: Solve for x
    x = 61,074,753.30/11,073.60
  6. Step 6: Final answer
    x = 5,515.35

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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.