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Finding the Fourth Proportional to 8,893.88, 13,338.60 and 4,212.68

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Solution

The fourth proportional to 8,893.88, 13,338.60 and 4,212.68 is: 6,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.88 : 13,338.60 = 4,212.68 : x
  2. Step 2: Convert to fraction form
    8,893.88/13,338.60 = 4,212.68/x
  3. Step 3: Cross multiply
    8,893.88x = 13,338.60 × 4,212.68
  4. Step 4: Simplify right side
    8,893.88x = 56,191,253.45
  5. Step 5: Solve for x
    x = 56,191,253.45/8,893.88
  6. Step 6: Final answer
    x = 6,317.97

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1.5x scale

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.