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Finding the Fourth Proportional to 38,993.49, 58,490.24 and 9,411.30

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Solution

The fourth proportional to 38,993.49, 58,490.24 and 9,411.30 is: 14,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.49 : 58,490.24 = 9,411.30 : x
  2. Step 2: Convert to fraction form
    38,993.49/58,490.24 = 9,411.30/x
  3. Step 3: Cross multiply
    38,993.49x = 58,490.24 × 9,411.30
  4. Step 4: Simplify right side
    38,993.49x = 550,469,148.66
  5. Step 5: Solve for x
    x = 550,469,148.66/38,993.49
  6. Step 6: Final answer
    x = 14,116.95

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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.