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Finding the Fourth Proportional to 11,483.99, 17,223.96 and 3,161.99

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Solution

The fourth proportional to 11,483.99, 17,223.96 and 3,161.99 is: 4,742.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.99 : 17,223.96 = 3,161.99 : x
  2. Step 2: Convert to fraction form
    11,483.99/17,223.96 = 3,161.99/x
  3. Step 3: Cross multiply
    11,483.99x = 17,223.96 × 3,161.99
  4. Step 4: Simplify right side
    11,483.99x = 54,461,989.28
  5. Step 5: Solve for x
    x = 54,461,989.28/11,483.99
  6. Step 6: Final answer
    x = 4,742.43

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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.