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Finding the Fourth Proportional to 8,873.12, 13,308.60 and 3,029.60

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Solution

The fourth proportional to 8,873.12, 13,308.60 and 3,029.60 is: 4,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.12 : 13,308.60 = 3,029.60 : x
  2. Step 2: Convert to fraction form
    8,873.12/13,308.60 = 3,029.60/x
  3. Step 3: Cross multiply
    8,873.12x = 13,308.60 × 3,029.60
  4. Step 4: Simplify right side
    8,873.12x = 40,319,734.56
  5. Step 5: Solve for x
    x = 40,319,734.56/8,873.12
  6. Step 6: Final answer
    x = 4,544.03

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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.