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Finding the Fourth Proportional to 8,850.86, 12,216.08 and 5,074.64

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Solution

The fourth proportional to 8,850.86, 12,216.08 and 5,074.64 is: 7,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.86 : 12,216.08 = 5,074.64 : x
  2. Step 2: Convert to fraction form
    8,850.86/12,216.08 = 5,074.64/x
  3. Step 3: Cross multiply
    8,850.86x = 12,216.08 × 5,074.64
  4. Step 4: Simplify right side
    8,850.86x = 61,992,208.21
  5. Step 5: Solve for x
    x = 61,992,208.21/8,850.86
  6. Step 6: Final answer
    x = 7,004.09

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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.