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Finding the Fourth Proportional to 53,951.67, 80,929.94 and 39,089.79

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Solution

The fourth proportional to 53,951.67, 80,929.94 and 39,089.79 is: 58,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,951.67 : 80,929.94 = 39,089.79 : x
  2. Step 2: Convert to fraction form
    53,951.67/80,929.94 = 39,089.79/x
  3. Step 3: Cross multiply
    53,951.67x = 80,929.94 × 39,089.79
  4. Step 4: Simplify right side
    53,951.67x = 3,163,534,163.86
  5. Step 5: Solve for x
    x = 3,163,534,163.86/53,951.67
  6. Step 6: Final answer
    x = 58,636.45

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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.