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Finding the Fourth Proportional to 19,959.33, 27,543.24 and 11,007

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Solution

The fourth proportional to 19,959.33, 27,543.24 and 11,007 is: 15,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.33 : 27,543.24 = 11,007 : x
  2. Step 2: Convert to fraction form
    19,959.33/27,543.24 = 11,007/x
  3. Step 3: Cross multiply
    19,959.33x = 27,543.24 × 11,007
  4. Step 4: Simplify right side
    19,959.33x = 303,168,442.68
  5. Step 5: Solve for x
    x = 303,168,442.68/19,959.33
  6. Step 6: Final answer
    x = 15,189.31

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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.