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Finding the Fourth Proportional to 5,579.53, 7,696.85 and 3,787.11

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Solution

The fourth proportional to 5,579.53, 7,696.85 and 3,787.11 is: 5,224.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.53 : 7,696.85 = 3,787.11 : x
  2. Step 2: Convert to fraction form
    5,579.53/7,696.85 = 3,787.11/x
  3. Step 3: Cross multiply
    5,579.53x = 7,696.85 × 3,787.11
  4. Step 4: Simplify right side
    5,579.53x = 29,148,798.67
  5. Step 5: Solve for x
    x = 29,148,798.67/5,579.53
  6. Step 6: Final answer
    x = 5,224.24

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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.