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Finding the Fourth Proportional to 21,607.63, 29,843.35 and 14,425.04

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Solution

The fourth proportional to 21,607.63, 29,843.35 and 14,425.04 is: 19,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.63 : 29,843.35 = 14,425.04 : x
  2. Step 2: Convert to fraction form
    21,607.63/29,843.35 = 14,425.04/x
  3. Step 3: Cross multiply
    21,607.63x = 29,843.35 × 14,425.04
  4. Step 4: Simplify right side
    21,607.63x = 430,491,517.48
  5. Step 5: Solve for x
    x = 430,491,517.48/21,607.63
  6. Step 6: Final answer
    x = 19,923.13

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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.