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Finding the Fourth Proportional to 66,796.34, 100,185.21 and 16,873.38

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Solution

The fourth proportional to 66,796.34, 100,185.21 and 16,873.38 is: 25,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,796.34 : 100,185.21 = 16,873.38 : x
  2. Step 2: Convert to fraction form
    66,796.34/100,185.21 = 16,873.38/x
  3. Step 3: Cross multiply
    66,796.34x = 100,185.21 × 16,873.38
  4. Step 4: Simplify right side
    66,796.34x = 1,690,463,118.71
  5. Step 5: Solve for x
    x = 1,690,463,118.71/66,796.34
  6. Step 6: Final answer
    x = 25,307.72

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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.