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Finding the Fourth Proportional to 40,894.34, 61,344.42 and 10,908.41

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Solution

The fourth proportional to 40,894.34, 61,344.42 and 10,908.41 is: 16,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,894.34 : 61,344.42 = 10,908.41 : x
  2. Step 2: Convert to fraction form
    40,894.34/61,344.42 = 10,908.41/x
  3. Step 3: Cross multiply
    40,894.34x = 61,344.42 × 10,908.41
  4. Step 4: Simplify right side
    40,894.34x = 669,169,798.30
  5. Step 5: Solve for x
    x = 669,169,798.30/40,894.34
  6. Step 6: Final answer
    x = 16,363.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.