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Finding the Fourth Proportional to 28,898.94, 39,866.04 and 19,951.44

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Solution

The fourth proportional to 28,898.94, 39,866.04 and 19,951.44 is: 27,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.94 : 39,866.04 = 19,951.44 : x
  2. Step 2: Convert to fraction form
    28,898.94/39,866.04 = 19,951.44/x
  3. Step 3: Cross multiply
    28,898.94x = 39,866.04 × 19,951.44
  4. Step 4: Simplify right side
    28,898.94x = 795,384,905.10
  5. Step 5: Solve for x
    x = 795,384,905.10/28,898.94
  6. Step 6: Final answer
    x = 27,522.98

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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.