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Finding the Fourth Proportional to 21,953.63, 30,296.05 and 11,882.09

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Solution

The fourth proportional to 21,953.63, 30,296.05 and 11,882.09 is: 16,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.63 : 30,296.05 = 11,882.09 : x
  2. Step 2: Convert to fraction form
    21,953.63/30,296.05 = 11,882.09/x
  3. Step 3: Cross multiply
    21,953.63x = 30,296.05 × 11,882.09
  4. Step 4: Simplify right side
    21,953.63x = 359,980,392.74
  5. Step 5: Solve for x
    x = 359,980,392.74/21,953.63
  6. Step 6: Final answer
    x = 16,397.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.