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Finding the Fourth Proportional to 53,757.34, 80,652.28 and 21,719.94

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Solution

The fourth proportional to 53,757.34, 80,652.28 and 21,719.94 is: 32,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,757.34 : 80,652.28 = 21,719.94 : x
  2. Step 2: Convert to fraction form
    53,757.34/80,652.28 = 21,719.94/x
  3. Step 3: Cross multiply
    53,757.34x = 80,652.28 × 21,719.94
  4. Step 4: Simplify right side
    53,757.34x = 1,751,762,682.46
  5. Step 5: Solve for x
    x = 1,751,762,682.46/53,757.34
  6. Step 6: Final answer
    x = 32,586.48

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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.