Home / 51,072.99-76,609.23-13,122.23

Finding the Fourth Proportional to 51,072.99, 76,609.23 and 13,122.23

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Solution

The fourth proportional to 51,072.99, 76,609.23 and 13,122.23 is: 19,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,072.99 : 76,609.23 = 13,122.23 : x
  2. Step 2: Convert to fraction form
    51,072.99/76,609.23 = 13,122.23/x
  3. Step 3: Cross multiply
    51,072.99x = 76,609.23 × 13,122.23
  4. Step 4: Simplify right side
    51,072.99x = 1,005,283,553.14
  5. Step 5: Solve for x
    x = 1,005,283,553.14/51,072.99
  6. Step 6: Final answer
    x = 19,683.27

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Double scale
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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.