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Finding the Fourth Proportional to 4,684.72, 6,463.92 and 2,795.80

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Solution

The fourth proportional to 4,684.72, 6,463.92 and 2,795.80 is: 3,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.72 : 6,463.92 = 2,795.80 : x
  2. Step 2: Convert to fraction form
    4,684.72/6,463.92 = 2,795.80/x
  3. Step 3: Cross multiply
    4,684.72x = 6,463.92 × 2,795.80
  4. Step 4: Simplify right side
    4,684.72x = 18,071,827.54
  5. Step 5: Solve for x
    x = 18,071,827.54/4,684.72
  6. Step 6: Final answer
    x = 3,857.61

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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.