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Finding the Fourth Proportional to 19,959.53, 27,543.62 and 11,006.88

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Solution

The fourth proportional to 19,959.53, 27,543.62 and 11,006.88 is: 15,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.53 : 27,543.62 = 11,006.88 : x
  2. Step 2: Convert to fraction form
    19,959.53/27,543.62 = 11,006.88/x
  3. Step 3: Cross multiply
    19,959.53x = 27,543.62 × 11,006.88
  4. Step 4: Simplify right side
    19,959.53x = 303,169,265.07
  5. Step 5: Solve for x
    x = 303,169,265.07/19,959.53
  6. Step 6: Final answer
    x = 15,189.20

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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.