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Finding the Fourth Proportional to 8,916.68, 13,376.52 and 3,294.68

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Solution

The fourth proportional to 8,916.68, 13,376.52 and 3,294.68 is: 4,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.68 : 13,376.52 = 3,294.68 : x
  2. Step 2: Convert to fraction form
    8,916.68/13,376.52 = 3,294.68/x
  3. Step 3: Cross multiply
    8,916.68x = 13,376.52 × 3,294.68
  4. Step 4: Simplify right side
    8,916.68x = 44,071,352.91
  5. Step 5: Solve for x
    x = 44,071,352.91/8,916.68
  6. Step 6: Final answer
    x = 4,942.57

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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.