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Finding the Fourth Proportional to 12,173.66, 18,258.66 and 3,852.60

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Solution

The fourth proportional to 12,173.66, 18,258.66 and 3,852.60 is: 5,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.66 : 18,258.66 = 3,852.60 : x
  2. Step 2: Convert to fraction form
    12,173.66/18,258.66 = 3,852.60/x
  3. Step 3: Cross multiply
    12,173.66x = 18,258.66 × 3,852.60
  4. Step 4: Simplify right side
    12,173.66x = 70,343,255.88
  5. Step 5: Solve for x
    x = 70,343,255.88/12,173.66
  6. Step 6: Final answer
    x = 5,778.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.