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Finding the Fourth Proportional to 43,873.90, 65,816.28 and 14,283.82

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Solution

The fourth proportional to 43,873.90, 65,816.28 and 14,283.82 is: 21,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,873.90 : 65,816.28 = 14,283.82 : x
  2. Step 2: Convert to fraction form
    43,873.90/65,816.28 = 14,283.82/x
  3. Step 3: Cross multiply
    43,873.90x = 65,816.28 × 14,283.82
  4. Step 4: Simplify right side
    43,873.90x = 940,107,896.59
  5. Step 5: Solve for x
    x = 940,107,896.59/43,873.90
  6. Step 6: Final answer
    x = 21,427.50

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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.