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Finding the Fourth Proportional to 52,814.76, 79,216.98 and 21,647.64

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Solution

The fourth proportional to 52,814.76, 79,216.98 and 21,647.64 is: 32,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,814.76 : 79,216.98 = 21,647.64 : x
  2. Step 2: Convert to fraction form
    52,814.76/79,216.98 = 21,647.64/x
  3. Step 3: Cross multiply
    52,814.76x = 79,216.98 × 21,647.64
  4. Step 4: Simplify right side
    52,814.76x = 1,714,860,664.93
  5. Step 5: Solve for x
    x = 1,714,860,664.93/52,814.76
  6. Step 6: Final answer
    x = 32,469.35

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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.