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Finding the Fourth Proportional to 8,916.80, 13,377.06 and 2,676.56

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Solution

The fourth proportional to 8,916.80, 13,377.06 and 2,676.56 is: 4,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.80 : 13,377.06 = 2,676.56 : x
  2. Step 2: Convert to fraction form
    8,916.80/13,377.06 = 2,676.56/x
  3. Step 3: Cross multiply
    8,916.80x = 13,377.06 × 2,676.56
  4. Step 4: Simplify right side
    8,916.80x = 35,804,503.71
  5. Step 5: Solve for x
    x = 35,804,503.71/8,916.80
  6. Step 6: Final answer
    x = 4,015.40

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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.