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Finding the Fourth Proportional to 51,295.60, 76,932.60 and 21,714.40

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Solution

The fourth proportional to 51,295.60, 76,932.60 and 21,714.40 is: 32,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,295.60 : 76,932.60 = 21,714.40 : x
  2. Step 2: Convert to fraction form
    51,295.60/76,932.60 = 21,714.40/x
  3. Step 3: Cross multiply
    51,295.60x = 76,932.60 × 21,714.40
  4. Step 4: Simplify right side
    51,295.60x = 1,670,545,249.44
  5. Step 5: Solve for x
    x = 1,670,545,249.44/51,295.60
  6. Step 6: Final answer
    x = 32,567.03

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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.