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Finding the Fourth Proportional to 15,556.44, 21,467.42 and 8,483

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Solution

The fourth proportional to 15,556.44, 21,467.42 and 8,483 is: 11,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.44 : 21,467.42 = 8,483 : x
  2. Step 2: Convert to fraction form
    15,556.44/21,467.42 = 8,483/x
  3. Step 3: Cross multiply
    15,556.44x = 21,467.42 × 8,483
  4. Step 4: Simplify right side
    15,556.44x = 182,108,123.86
  5. Step 5: Solve for x
    x = 182,108,123.86/15,556.44
  6. Step 6: Final answer
    x = 11,706.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.