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Finding the Fourth Proportional to 40,894.70, 61,343.39 and 10,908.63

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Solution

The fourth proportional to 40,894.70, 61,343.39 and 10,908.63 is: 16,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,894.70 : 61,343.39 = 10,908.63 : x
  2. Step 2: Convert to fraction form
    40,894.70/61,343.39 = 10,908.63/x
  3. Step 3: Cross multiply
    40,894.70x = 61,343.39 × 10,908.63
  4. Step 4: Simplify right side
    40,894.70x = 669,172,371.73
  5. Step 5: Solve for x
    x = 669,172,371.73/40,894.70
  6. Step 6: Final answer
    x = 16,363.31

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1.5x scale

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.