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Finding the Fourth Proportional to 5,891.65, 8,128.83 and 3,653.62

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Solution

The fourth proportional to 5,891.65, 8,128.83 and 3,653.62 is: 5,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.65 : 8,128.83 = 3,653.62 : x
  2. Step 2: Convert to fraction form
    5,891.65/8,128.83 = 3,653.62/x
  3. Step 3: Cross multiply
    5,891.65x = 8,128.83 × 3,653.62
  4. Step 4: Simplify right side
    5,891.65x = 29,699,655.86
  5. Step 5: Solve for x
    x = 29,699,655.86/5,891.65
  6. Step 6: Final answer
    x = 5,040.97

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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.