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Finding the Fourth Proportional to 21,826.67, 32,740.81 and 7,035.80

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Solution

The fourth proportional to 21,826.67, 32,740.81 and 7,035.80 is: 10,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.67 : 32,740.81 = 7,035.80 : x
  2. Step 2: Convert to fraction form
    21,826.67/32,740.81 = 7,035.80/x
  3. Step 3: Cross multiply
    21,826.67x = 32,740.81 × 7,035.80
  4. Step 4: Simplify right side
    21,826.67x = 230,357,791.00
  5. Step 5: Solve for x
    x = 230,357,791.00/21,826.67
  6. Step 6: Final answer
    x = 10,553.96

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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.