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Finding the Fourth Proportional to 14,103.94, 21,156.97 and 4,743.99

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Solution

The fourth proportional to 14,103.94, 21,156.97 and 4,743.99 is: 7,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.94 : 21,156.97 = 4,743.99 : x
  2. Step 2: Convert to fraction form
    14,103.94/21,156.97 = 4,743.99/x
  3. Step 3: Cross multiply
    14,103.94x = 21,156.97 × 4,743.99
  4. Step 4: Simplify right side
    14,103.94x = 100,368,454.11
  5. Step 5: Solve for x
    x = 100,368,454.11/14,103.94
  6. Step 6: Final answer
    x = 7,116.34

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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.