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Finding the Fourth Proportional to 53,407.44, 80,125.80 and 18,349.92

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Solution

The fourth proportional to 53,407.44, 80,125.80 and 18,349.92 is: 27,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.44 : 80,125.80 = 18,349.92 : x
  2. Step 2: Convert to fraction form
    53,407.44/80,125.80 = 18,349.92/x
  3. Step 3: Cross multiply
    53,407.44x = 80,125.80 × 18,349.92
  4. Step 4: Simplify right side
    53,407.44x = 1,470,302,019.94
  5. Step 5: Solve for x
    x = 1,470,302,019.94/53,407.44
  6. Step 6: Final answer
    x = 27,529.91

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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.