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Finding the Fourth Proportional to 64,894.62, 89,554.41 and 36,213.98

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Solution

The fourth proportional to 64,894.62, 89,554.41 and 36,213.98 is: 49,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.62 : 89,554.41 = 36,213.98 : x
  2. Step 2: Convert to fraction form
    64,894.62/89,554.41 = 36,213.98/x
  3. Step 3: Cross multiply
    64,894.62x = 89,554.41 × 36,213.98
  4. Step 4: Simplify right side
    64,894.62x = 3,243,121,612.65
  5. Step 5: Solve for x
    x = 3,243,121,612.65/64,894.62
  6. Step 6: Final answer
    x = 49,975.20

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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.