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Finding the Fourth Proportional to 8,876.72, 13,317.74 and 2,636.94

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Solution

The fourth proportional to 8,876.72, 13,317.74 and 2,636.94 is: 3,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.72 : 13,317.74 = 2,636.94 : x
  2. Step 2: Convert to fraction form
    8,876.72/13,317.74 = 2,636.94/x
  3. Step 3: Cross multiply
    8,876.72x = 13,317.74 × 2,636.94
  4. Step 4: Simplify right side
    8,876.72x = 35,118,081.32
  5. Step 5: Solve for x
    x = 35,118,081.32/8,876.72
  6. Step 6: Final answer
    x = 3,956.20

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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.