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Finding the Fourth Proportional to 11,763.36, 17,645.76 and 3,866.76

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Solution

The fourth proportional to 11,763.36, 17,645.76 and 3,866.76 is: 5,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.36 : 17,645.76 = 3,866.76 : x
  2. Step 2: Convert to fraction form
    11,763.36/17,645.76 = 3,866.76/x
  3. Step 3: Cross multiply
    11,763.36x = 17,645.76 × 3,866.76
  4. Step 4: Simplify right side
    11,763.36x = 68,231,918.94
  5. Step 5: Solve for x
    x = 68,231,918.94/11,763.36
  6. Step 6: Final answer
    x = 5,800.38

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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.