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Finding the Fourth Proportional to 12,462.89, 17,198.30 and 6,873.89

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Solution

The fourth proportional to 12,462.89, 17,198.30 and 6,873.89 is: 9,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.89 : 17,198.30 = 6,873.89 : x
  2. Step 2: Convert to fraction form
    12,462.89/17,198.30 = 6,873.89/x
  3. Step 3: Cross multiply
    12,462.89x = 17,198.30 × 6,873.89
  4. Step 4: Simplify right side
    12,462.89x = 118,219,222.39
  5. Step 5: Solve for x
    x = 118,219,222.39/12,462.89
  6. Step 6: Final answer
    x = 9,485.70

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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.