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Finding the Fourth Proportional to 19,295.81, 28,936.52 and 6,641.99

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Solution

The fourth proportional to 19,295.81, 28,936.52 and 6,641.99 is: 9,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.81 : 28,936.52 = 6,641.99 : x
  2. Step 2: Convert to fraction form
    19,295.81/28,936.52 = 6,641.99/x
  3. Step 3: Cross multiply
    19,295.81x = 28,936.52 × 6,641.99
  4. Step 4: Simplify right side
    19,295.81x = 192,196,076.47
  5. Step 5: Solve for x
    x = 192,196,076.47/19,295.81
  6. Step 6: Final answer
    x = 9,960.51

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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.