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Finding the Fourth Proportional to 56,650.54, 84,984.18 and 21,102.88

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Solution

The fourth proportional to 56,650.54, 84,984.18 and 21,102.88 is: 31,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,650.54 : 84,984.18 = 21,102.88 : x
  2. Step 2: Convert to fraction form
    56,650.54/84,984.18 = 21,102.88/x
  3. Step 3: Cross multiply
    56,650.54x = 84,984.18 × 21,102.88
  4. Step 4: Simplify right side
    56,650.54x = 1,793,410,952.44
  5. Step 5: Solve for x
    x = 1,793,410,952.44/56,650.54
  6. Step 6: Final answer
    x = 31,657.44

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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.