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Finding the Fourth Proportional to 19,243.36, 28,865.04 and 5,392.36

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Solution

The fourth proportional to 19,243.36, 28,865.04 and 5,392.36 is: 8,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.36 : 28,865.04 = 5,392.36 : x
  2. Step 2: Convert to fraction form
    19,243.36/28,865.04 = 5,392.36/x
  3. Step 3: Cross multiply
    19,243.36x = 28,865.04 × 5,392.36
  4. Step 4: Simplify right side
    19,243.36x = 155,650,687.09
  5. Step 5: Solve for x
    x = 155,650,687.09/19,243.36
  6. Step 6: Final answer
    x = 8,088.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.