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Finding the Fourth Proportional to 64,861.81, 89,513.49 and 36,569.32

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Solution

The fourth proportional to 64,861.81, 89,513.49 and 36,569.32 is: 50,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,861.81 : 89,513.49 = 36,569.32 : x
  2. Step 2: Convert to fraction form
    64,861.81/89,513.49 = 36,569.32/x
  3. Step 3: Cross multiply
    64,861.81x = 89,513.49 × 36,569.32
  4. Step 4: Simplify right side
    64,861.81x = 3,273,447,460.13
  5. Step 5: Solve for x
    x = 3,273,447,460.13/64,861.81
  6. Step 6: Final answer
    x = 50,468.03

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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.