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Finding the Fourth Proportional to 58,113.36, 87,183 and 20,674.80

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Solution

The fourth proportional to 58,113.36, 87,183 and 20,674.80 is: 31,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,113.36 : 87,183 = 20,674.80 : x
  2. Step 2: Convert to fraction form
    58,113.36/87,183 = 20,674.80/x
  3. Step 3: Cross multiply
    58,113.36x = 87,183 × 20,674.80
  4. Step 4: Simplify right side
    58,113.36x = 1,802,491,088.40
  5. Step 5: Solve for x
    x = 1,802,491,088.40/58,113.36
  6. Step 6: Final answer
    x = 31,016.81

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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.