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Finding the Fourth Proportional to 14,593.58, 21,743.44 and 13,638.80

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Solution

The fourth proportional to 14,593.58, 21,743.44 and 13,638.80 is: 20,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,593.58 : 21,743.44 = 13,638.80 : x
  2. Step 2: Convert to fraction form
    14,593.58/21,743.44 = 13,638.80/x
  3. Step 3: Cross multiply
    14,593.58x = 21,743.44 × 13,638.80
  4. Step 4: Simplify right side
    14,593.58x = 296,554,429.47
  5. Step 5: Solve for x
    x = 296,554,429.47/14,593.58
  6. Step 6: Final answer
    x = 20,320.88

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.