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Finding the Fourth Proportional to 57,664.60, 86,483.82 and 26,469.88

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Solution

The fourth proportional to 57,664.60, 86,483.82 and 26,469.88 is: 39,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,664.60 : 86,483.82 = 26,469.88 : x
  2. Step 2: Convert to fraction form
    57,664.60/86,483.82 = 26,469.88/x
  3. Step 3: Cross multiply
    57,664.60x = 86,483.82 × 26,469.88
  4. Step 4: Simplify right side
    57,664.60x = 2,289,216,337.34
  5. Step 5: Solve for x
    x = 2,289,216,337.34/57,664.60
  6. Step 6: Final answer
    x = 39,698.82

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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.