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Finding the Fourth Proportional to 58,608.47, 87,894.38 and 21,163.66

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Solution

The fourth proportional to 58,608.47, 87,894.38 and 21,163.66 is: 31,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,608.47 : 87,894.38 = 21,163.66 : x
  2. Step 2: Convert to fraction form
    58,608.47/87,894.38 = 21,163.66/x
  3. Step 3: Cross multiply
    58,608.47x = 87,894.38 × 21,163.66
  4. Step 4: Simplify right side
    58,608.47x = 1,860,166,607.40
  5. Step 5: Solve for x
    x = 1,860,166,607.40/58,608.47
  6. Step 6: Final answer
    x = 31,738.87

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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.