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Finding the Fourth Proportional to 5,685.29, 7,845.72 and 3,295.73

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Solution

The fourth proportional to 5,685.29, 7,845.72 and 3,295.73 is: 4,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.29 : 7,845.72 = 3,295.73 : x
  2. Step 2: Convert to fraction form
    5,685.29/7,845.72 = 3,295.73/x
  3. Step 3: Cross multiply
    5,685.29x = 7,845.72 × 3,295.73
  4. Step 4: Simplify right side
    5,685.29x = 25,857,319.07
  5. Step 5: Solve for x
    x = 25,857,319.07/5,685.29
  6. Step 6: Final answer
    x = 4,548.11

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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.