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Finding the Fourth Proportional to 4,690.73, 7,033.82 and 1,916.30

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Solution

The fourth proportional to 4,690.73, 7,033.82 and 1,916.30 is: 2,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.73 : 7,033.82 = 1,916.30 : x
  2. Step 2: Convert to fraction form
    4,690.73/7,033.82 = 1,916.30/x
  3. Step 3: Cross multiply
    4,690.73x = 7,033.82 × 1,916.30
  4. Step 4: Simplify right side
    4,690.73x = 13,478,864.52
  5. Step 5: Solve for x
    x = 13,478,864.52/4,690.73
  6. Step 6: Final answer
    x = 2,873.51

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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.