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Finding the Fourth Proportional to 57,890.48, 86,794.71 and 22,321.67

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Solution

The fourth proportional to 57,890.48, 86,794.71 and 22,321.67 is: 33,466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.48 : 86,794.71 = 22,321.67 : x
  2. Step 2: Convert to fraction form
    57,890.48/86,794.71 = 22,321.67/x
  3. Step 3: Cross multiply
    57,890.48x = 86,794.71 × 22,321.67
  4. Step 4: Simplify right side
    57,890.48x = 1,937,402,440.39
  5. Step 5: Solve for x
    x = 1,937,402,440.39/57,890.48
  6. Step 6: Final answer
    x = 33,466.69

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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.