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Finding the Fourth Proportional to 64,903.46, 89,570.96 and 36,608.54

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Solution

The fourth proportional to 64,903.46, 89,570.96 and 36,608.54 is: 50,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.46 : 89,570.96 = 36,608.54 : x
  2. Step 2: Convert to fraction form
    64,903.46/89,570.96 = 36,608.54/x
  3. Step 3: Cross multiply
    64,903.46x = 89,570.96 × 36,608.54
  4. Step 4: Simplify right side
    64,903.46x = 3,279,061,441.10
  5. Step 5: Solve for x
    x = 3,279,061,441.10/64,903.46
  6. Step 6: Final answer
    x = 50,522.14

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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.