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Finding the Fourth Proportional to 64,857.94, 89,502.74 and 36,563.64

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Solution

The fourth proportional to 64,857.94, 89,502.74 and 36,563.64 is: 50,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,857.94 : 89,502.74 = 36,563.64 : x
  2. Step 2: Convert to fraction form
    64,857.94/89,502.74 = 36,563.64/x
  3. Step 3: Cross multiply
    64,857.94x = 89,502.74 × 36,563.64
  4. Step 4: Simplify right side
    64,857.94x = 3,272,545,964.37
  5. Step 5: Solve for x
    x = 3,272,545,964.37/64,857.94
  6. Step 6: Final answer
    x = 50,457.14

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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.