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Finding the Fourth Proportional to 64,869.32, 89,516.94 and 36,577.64

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Solution

The fourth proportional to 64,869.32, 89,516.94 and 36,577.64 is: 50,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,869.32 : 89,516.94 = 36,577.64 : x
  2. Step 2: Convert to fraction form
    64,869.32/89,516.94 = 36,577.64/x
  3. Step 3: Cross multiply
    64,869.32x = 89,516.94 × 36,577.64
  4. Step 4: Simplify right side
    64,869.32x = 3,274,318,405.22
  5. Step 5: Solve for x
    x = 3,274,318,405.22/64,869.32
  6. Step 6: Final answer
    x = 50,475.61

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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.