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Finding the Fourth Proportional to 11,136.58, 15,368.44 and 6,168.58

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Solution

The fourth proportional to 11,136.58, 15,368.44 and 6,168.58 is: 8,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.58 : 15,368.44 = 6,168.58 : x
  2. Step 2: Convert to fraction form
    11,136.58/15,368.44 = 6,168.58/x
  3. Step 3: Cross multiply
    11,136.58x = 15,368.44 × 6,168.58
  4. Step 4: Simplify right side
    11,136.58x = 94,801,451.62
  5. Step 5: Solve for x
    x = 94,801,451.62/11,136.58
  6. Step 6: Final answer
    x = 8,512.62

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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.