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Finding the Fourth Proportional to 5,185.52, 7,153.98 and 2,916.33

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Solution

The fourth proportional to 5,185.52, 7,153.98 and 2,916.33 is: 4,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.52 : 7,153.98 = 2,916.33 : x
  2. Step 2: Convert to fraction form
    5,185.52/7,153.98 = 2,916.33/x
  3. Step 3: Cross multiply
    5,185.52x = 7,153.98 × 2,916.33
  4. Step 4: Simplify right side
    5,185.52x = 20,863,366.49
  5. Step 5: Solve for x
    x = 20,863,366.49/5,185.52
  6. Step 6: Final answer
    x = 4,023.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.