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Finding the Fourth Proportional to 8,916.31, 13,376.31 and 2,676.07

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Solution

The fourth proportional to 8,916.31, 13,376.31 and 2,676.07 is: 4,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.31 : 13,376.31 = 2,676.07 : x
  2. Step 2: Convert to fraction form
    8,916.31/13,376.31 = 2,676.07/x
  3. Step 3: Cross multiply
    8,916.31x = 13,376.31 × 2,676.07
  4. Step 4: Simplify right side
    8,916.31x = 35,795,941.90
  5. Step 5: Solve for x
    x = 35,795,941.90/8,916.31
  6. Step 6: Final answer
    x = 4,014.66

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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.