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Finding the Fourth Proportional to 53,752.32, 80,644.80 and 21,714.96

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Solution

The fourth proportional to 53,752.32, 80,644.80 and 21,714.96 is: 32,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,752.32 : 80,644.80 = 21,714.96 : x
  2. Step 2: Convert to fraction form
    53,752.32/80,644.80 = 21,714.96/x
  3. Step 3: Cross multiply
    53,752.32x = 80,644.80 × 21,714.96
  4. Step 4: Simplify right side
    53,752.32x = 1,751,198,606.21
  5. Step 5: Solve for x
    x = 1,751,198,606.21/53,752.32
  6. Step 6: Final answer
    x = 32,579.03

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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.