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Finding the Fourth Proportional to 38,997.99, 58,496.99 and 9,415.80

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Solution

The fourth proportional to 38,997.99, 58,496.99 and 9,415.80 is: 14,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,997.99 : 58,496.99 = 9,415.80 : x
  2. Step 2: Convert to fraction form
    38,997.99/58,496.99 = 9,415.80/x
  3. Step 3: Cross multiply
    38,997.99x = 58,496.99 × 9,415.80
  4. Step 4: Simplify right side
    38,997.99x = 550,795,958.44
  5. Step 5: Solve for x
    x = 550,795,958.44/38,997.99
  6. Step 6: Final answer
    x = 14,123.70

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Similar ratio
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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.