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Finding the Fourth Proportional to 21,550.59, 32,325.84 and 6,760.80

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Solution

The fourth proportional to 21,550.59, 32,325.84 and 6,760.80 is: 10,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.59 : 32,325.84 = 6,760.80 : x
  2. Step 2: Convert to fraction form
    21,550.59/32,325.84 = 6,760.80/x
  3. Step 3: Cross multiply
    21,550.59x = 32,325.84 × 6,760.80
  4. Step 4: Simplify right side
    21,550.59x = 218,548,539.07
  5. Step 5: Solve for x
    x = 218,548,539.07/21,550.59
  6. Step 6: Final answer
    x = 10,141.19

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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.