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Finding the Fourth Proportional to 52,796.88, 79,211.70 and 21,634.56

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Solution

The fourth proportional to 52,796.88, 79,211.70 and 21,634.56 is: 32,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,796.88 : 79,211.70 = 21,634.56 : x
  2. Step 2: Convert to fraction form
    52,796.88/79,211.70 = 21,634.56/x
  3. Step 3: Cross multiply
    52,796.88x = 79,211.70 × 21,634.56
  4. Step 4: Simplify right side
    52,796.88x = 1,713,710,276.35
  5. Step 5: Solve for x
    x = 1,713,710,276.35/52,796.88
  6. Step 6: Final answer
    x = 32,458.55

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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.