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Finding the Fourth Proportional to 4,917.28, 7,382.32 and 4,717.60

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Solution

The fourth proportional to 4,917.28, 7,382.32 and 4,717.60 is: 7,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.28 : 7,382.32 = 4,717.60 : x
  2. Step 2: Convert to fraction form
    4,917.28/7,382.32 = 4,717.60/x
  3. Step 3: Cross multiply
    4,917.28x = 7,382.32 × 4,717.60
  4. Step 4: Simplify right side
    4,917.28x = 34,826,832.83
  5. Step 5: Solve for x
    x = 34,826,832.83/4,917.28
  6. Step 6: Final answer
    x = 7,082.54

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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.