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Finding the Fourth Proportional to 62,321.55, 93,342.89 and 28,991.67

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Solution

The fourth proportional to 62,321.55, 93,342.89 and 28,991.67 is: 43,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,321.55 : 93,342.89 = 28,991.67 : x
  2. Step 2: Convert to fraction form
    62,321.55/93,342.89 = 28,991.67/x
  3. Step 3: Cross multiply
    62,321.55x = 93,342.89 × 28,991.67
  4. Step 4: Simplify right side
    62,321.55x = 2,706,166,263.73
  5. Step 5: Solve for x
    x = 2,706,166,263.73/62,321.55
  6. Step 6: Final answer
    x = 43,422.64

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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.