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Finding the Fourth Proportional to 11,396.69, 15,726.02 and 6,361.19

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Solution

The fourth proportional to 11,396.69, 15,726.02 and 6,361.19 is: 8,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.69 : 15,726.02 = 6,361.19 : x
  2. Step 2: Convert to fraction form
    11,396.69/15,726.02 = 6,361.19/x
  3. Step 3: Cross multiply
    11,396.69x = 15,726.02 × 6,361.19
  4. Step 4: Simplify right side
    11,396.69x = 100,036,090.73
  5. Step 5: Solve for x
    x = 100,036,090.73/11,396.69
  6. Step 6: Final answer
    x = 8,777.65

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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.