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Finding the Fourth Proportional to 19,963.68, 27,549.48 and 11,012.01

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Solution

The fourth proportional to 19,963.68, 27,549.48 and 11,012.01 is: 15,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,963.68 : 27,549.48 = 11,012.01 : x
  2. Step 2: Convert to fraction form
    19,963.68/27,549.48 = 11,012.01/x
  3. Step 3: Cross multiply
    19,963.68x = 27,549.48 × 11,012.01
  4. Step 4: Simplify right side
    19,963.68x = 303,375,149.25
  5. Step 5: Solve for x
    x = 303,375,149.25/19,963.68
  6. Step 6: Final answer
    x = 15,196.35

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Why These Related Problems?

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