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Finding the Fourth Proportional to 14,488.49, 19,993.42 and 8,898.41

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Solution

The fourth proportional to 14,488.49, 19,993.42 and 8,898.41 is: 12,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.49 : 19,993.42 = 8,898.41 : x
  2. Step 2: Convert to fraction form
    14,488.49/19,993.42 = 8,898.41/x
  3. Step 3: Cross multiply
    14,488.49x = 19,993.42 × 8,898.41
  4. Step 4: Simplify right side
    14,488.49x = 177,909,648.46
  5. Step 5: Solve for x
    x = 177,909,648.46/14,488.49
  6. Step 6: Final answer
    x = 12,279.38

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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.