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Finding the Fourth Proportional to 19,419.52, 26,798.90 and 11,036

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Solution

The fourth proportional to 19,419.52, 26,798.90 and 11,036 is: 15,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.52 : 26,798.90 = 11,036 : x
  2. Step 2: Convert to fraction form
    19,419.52/26,798.90 = 11,036/x
  3. Step 3: Cross multiply
    19,419.52x = 26,798.90 × 11,036
  4. Step 4: Simplify right side
    19,419.52x = 295,752,660.40
  5. Step 5: Solve for x
    x = 295,752,660.40/19,419.52
  6. Step 6: Final answer
    x = 15,229.66

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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.