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Finding the Fourth Proportional to 6,728.52, 9,285.48 and 3,703.62

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Solution

The fourth proportional to 6,728.52, 9,285.48 and 3,703.62 is: 5,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.52 : 9,285.48 = 3,703.62 : x
  2. Step 2: Convert to fraction form
    6,728.52/9,285.48 = 3,703.62/x
  3. Step 3: Cross multiply
    6,728.52x = 9,285.48 × 3,703.62
  4. Step 4: Simplify right side
    6,728.52x = 34,389,889.44
  5. Step 5: Solve for x
    x = 34,389,889.44/6,728.52
  6. Step 6: Final answer
    x = 5,111.06

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1.5x scale

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.