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Finding the Fourth Proportional to 14,652.40, 21,963.09 and 4,789.03

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Solution

The fourth proportional to 14,652.40, 21,963.09 and 4,789.03 is: 7,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652.40 : 21,963.09 = 4,789.03 : x
  2. Step 2: Convert to fraction form
    14,652.40/21,963.09 = 4,789.03/x
  3. Step 3: Cross multiply
    14,652.40x = 21,963.09 × 4,789.03
  4. Step 4: Simplify right side
    14,652.40x = 105,181,896.90
  5. Step 5: Solve for x
    x = 105,181,896.90/14,652.40
  6. Step 6: Final answer
    x = 7,178.48

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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.