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Finding the Fourth Proportional to 13,393.44, 18,483.08 and 8,087.22

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Solution

The fourth proportional to 13,393.44, 18,483.08 and 8,087.22 is: 11,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.44 : 18,483.08 = 8,087.22 : x
  2. Step 2: Convert to fraction form
    13,393.44/18,483.08 = 8,087.22/x
  3. Step 3: Cross multiply
    13,393.44x = 18,483.08 × 8,087.22
  4. Step 4: Simplify right side
    13,393.44x = 149,476,693.80
  5. Step 5: Solve for x
    x = 149,476,693.80/13,393.44
  6. Step 6: Final answer
    x = 11,160.44

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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.