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Finding the Fourth Proportional to 43,273.80, 64,873.80 and 16,972.38

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Solution

The fourth proportional to 43,273.80, 64,873.80 and 16,972.38 is: 25,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,273.80 : 64,873.80 = 16,972.38 : x
  2. Step 2: Convert to fraction form
    43,273.80/64,873.80 = 16,972.38/x
  3. Step 3: Cross multiply
    43,273.80x = 64,873.80 × 16,972.38
  4. Step 4: Simplify right side
    43,273.80x = 1,101,062,785.64
  5. Step 5: Solve for x
    x = 1,101,062,785.64/43,273.80
  6. Step 6: Final answer
    x = 25,444.10

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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.