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Finding the Fourth Proportional to 7,916.49, 11,874.49 and 3,235.17

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Solution

The fourth proportional to 7,916.49, 11,874.49 and 3,235.17 is: 4,852.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.49 : 11,874.49 = 3,235.17 : x
  2. Step 2: Convert to fraction form
    7,916.49/11,874.49 = 3,235.17/x
  3. Step 3: Cross multiply
    7,916.49x = 11,874.49 × 3,235.17
  4. Step 4: Simplify right side
    7,916.49x = 38,415,993.81
  5. Step 5: Solve for x
    x = 38,415,993.81/7,916.49
  6. Step 6: Final answer
    x = 4,852.65

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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.