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Finding the Fourth Proportional to 21,620.46, 32,434.08 and 5,826.11

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Solution

The fourth proportional to 21,620.46, 32,434.08 and 5,826.11 is: 8,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.46 : 32,434.08 = 5,826.11 : x
  2. Step 2: Convert to fraction form
    21,620.46/32,434.08 = 5,826.11/x
  3. Step 3: Cross multiply
    21,620.46x = 32,434.08 × 5,826.11
  4. Step 4: Simplify right side
    21,620.46x = 188,964,355.66
  5. Step 5: Solve for x
    x = 188,964,355.66/21,620.46
  6. Step 6: Final answer
    x = 8,740.07

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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.