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Finding the Fourth Proportional to 5,656.98, 8,485.46 and 3,190.68

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Solution

The fourth proportional to 5,656.98, 8,485.46 and 3,190.68 is: 4,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.98 : 8,485.46 = 3,190.68 : x
  2. Step 2: Convert to fraction form
    5,656.98/8,485.46 = 3,190.68/x
  3. Step 3: Cross multiply
    5,656.98x = 8,485.46 × 3,190.68
  4. Step 4: Simplify right side
    5,656.98x = 27,074,329.13
  5. Step 5: Solve for x
    x = 27,074,329.13/5,656.98
  6. Step 6: Final answer
    x = 4,786.01

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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.