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Finding the Fourth Proportional to 21,882.76, 32,828.94 and 7,093.16

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Solution

The fourth proportional to 21,882.76, 32,828.94 and 7,093.16 is: 10,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.76 : 32,828.94 = 7,093.16 : x
  2. Step 2: Convert to fraction form
    21,882.76/32,828.94 = 7,093.16/x
  3. Step 3: Cross multiply
    21,882.76x = 32,828.94 × 7,093.16
  4. Step 4: Simplify right side
    21,882.76x = 232,860,924.05
  5. Step 5: Solve for x
    x = 232,860,924.05/21,882.76
  6. Step 6: Final answer
    x = 10,641.30

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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.