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Finding the Fourth Proportional to 43,219.84, 64,857.08 and 16,923.88

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Solution

The fourth proportional to 43,219.84, 64,857.08 and 16,923.88 is: 25,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,219.84 : 64,857.08 = 16,923.88 : x
  2. Step 2: Convert to fraction form
    43,219.84/64,857.08 = 16,923.88/x
  3. Step 3: Cross multiply
    43,219.84x = 64,857.08 × 16,923.88
  4. Step 4: Simplify right side
    43,219.84x = 1,097,633,439.07
  5. Step 5: Solve for x
    x = 1,097,633,439.07/43,219.84
  6. Step 6: Final answer
    x = 25,396.52

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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.