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Finding the Fourth Proportional to 8,374.25, 11,556.47 and 4,648.25

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Solution

The fourth proportional to 8,374.25, 11,556.47 and 4,648.25 is: 6,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.25 : 11,556.47 = 4,648.25 : x
  2. Step 2: Convert to fraction form
    8,374.25/11,556.47 = 4,648.25/x
  3. Step 3: Cross multiply
    8,374.25x = 11,556.47 × 4,648.25
  4. Step 4: Simplify right side
    8,374.25x = 53,717,361.68
  5. Step 5: Solve for x
    x = 53,717,361.68/8,374.25
  6. Step 6: Final answer
    x = 6,414.59

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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.