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Finding the Fourth Proportional to 5,739.81, 8,603.72 and 3,891.04

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Solution

The fourth proportional to 5,739.81, 8,603.72 and 3,891.04 is: 5,832.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.81 : 8,603.72 = 3,891.04 : x
  2. Step 2: Convert to fraction form
    5,739.81/8,603.72 = 3,891.04/x
  3. Step 3: Cross multiply
    5,739.81x = 8,603.72 × 3,891.04
  4. Step 4: Simplify right side
    5,739.81x = 33,477,392.30
  5. Step 5: Solve for x
    x = 33,477,392.30/5,739.81
  6. Step 6: Final answer
    x = 5,832.49

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1.5x scale

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.