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Finding the Fourth Proportional to 11,396.48, 15,727.93 and 6,361.68

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Solution

The fourth proportional to 11,396.48, 15,727.93 and 6,361.68 is: 8,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.48 : 15,727.93 = 6,361.68 : x
  2. Step 2: Convert to fraction form
    11,396.48/15,727.93 = 6,361.68/x
  3. Step 3: Cross multiply
    11,396.48x = 15,727.93 × 6,361.68
  4. Step 4: Simplify right side
    11,396.48x = 100,056,041.82
  5. Step 5: Solve for x
    x = 100,056,041.82/11,396.48
  6. Step 6: Final answer
    x = 8,779.56

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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.