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Finding the Fourth Proportional to 64,795.96, 89,407.60 and 36,109.34

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Solution

The fourth proportional to 64,795.96, 89,407.60 and 36,109.34 is: 49,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,795.96 : 89,407.60 = 36,109.34 : x
  2. Step 2: Convert to fraction form
    64,795.96/89,407.60 = 36,109.34/x
  3. Step 3: Cross multiply
    64,795.96x = 89,407.60 × 36,109.34
  4. Step 4: Simplify right side
    64,795.96x = 3,228,449,224.95
  5. Step 5: Solve for x
    x = 3,228,449,224.95/64,795.96
  6. Step 6: Final answer
    x = 49,824.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.