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Finding the Fourth Proportional to 9,916.53, 14,874.84 and 3,342.77

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Solution

The fourth proportional to 9,916.53, 14,874.84 and 3,342.77 is: 5,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.53 : 14,874.84 = 3,342.77 : x
  2. Step 2: Convert to fraction form
    9,916.53/14,874.84 = 3,342.77/x
  3. Step 3: Cross multiply
    9,916.53x = 14,874.84 × 3,342.77
  4. Step 4: Simplify right side
    9,916.53x = 49,723,168.91
  5. Step 5: Solve for x
    x = 49,723,168.91/9,916.53
  6. Step 6: Final answer
    x = 5,014.17

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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.