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Finding the Fourth Proportional to 53,762.68, 80,676.44 and 18,726.96

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Solution

The fourth proportional to 53,762.68, 80,676.44 and 18,726.96 is: 28,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,762.68 : 80,676.44 = 18,726.96 : x
  2. Step 2: Convert to fraction form
    53,762.68/80,676.44 = 18,726.96/x
  3. Step 3: Cross multiply
    53,762.68x = 80,676.44 × 18,726.96
  4. Step 4: Simplify right side
    53,762.68x = 1,510,824,464.82
  5. Step 5: Solve for x
    x = 1,510,824,464.82/53,762.68
  6. Step 6: Final answer
    x = 28,101.73

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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.