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Finding the Fourth Proportional to 5,622.80, 8,437.80 and 3,282.80

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Solution

The fourth proportional to 5,622.80, 8,437.80 and 3,282.80 is: 4,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.80 : 8,437.80 = 3,282.80 : x
  2. Step 2: Convert to fraction form
    5,622.80/8,437.80 = 3,282.80/x
  3. Step 3: Cross multiply
    5,622.80x = 8,437.80 × 3,282.80
  4. Step 4: Simplify right side
    5,622.80x = 27,699,609.84
  5. Step 5: Solve for x
    x = 27,699,609.84/5,622.80
  6. Step 6: Final answer
    x = 4,926.30

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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.