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Finding the Fourth Proportional to 64,738.92, 89,341.38 and 36,445.62

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Solution

The fourth proportional to 64,738.92, 89,341.38 and 36,445.62 is: 50,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,738.92 : 89,341.38 = 36,445.62 : x
  2. Step 2: Convert to fraction form
    64,738.92/89,341.38 = 36,445.62/x
  3. Step 3: Cross multiply
    64,738.92x = 89,341.38 × 36,445.62
  4. Step 4: Simplify right side
    64,738.92x = 3,256,101,985.76
  5. Step 5: Solve for x
    x = 3,256,101,985.76/64,738.92
  6. Step 6: Final answer
    x = 50,295.90

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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.