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Finding the Fourth Proportional to 64,894.26, 89,554.41 and 36,216.57

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Solution

The fourth proportional to 64,894.26, 89,554.41 and 36,216.57 is: 49,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.26 : 89,554.41 = 36,216.57 : x
  2. Step 2: Convert to fraction form
    64,894.26/89,554.41 = 36,216.57/x
  3. Step 3: Cross multiply
    64,894.26x = 89,554.41 × 36,216.57
  4. Step 4: Simplify right side
    64,894.26x = 3,243,353,558.57
  5. Step 5: Solve for x
    x = 3,243,353,558.57/64,894.26
  6. Step 6: Final answer
    x = 49,979.05

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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.