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Finding the Fourth Proportional to 8,460.45, 11,676.15 and 4,923.99

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Solution

The fourth proportional to 8,460.45, 11,676.15 and 4,923.99 is: 6,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.45 : 11,676.15 = 4,923.99 : x
  2. Step 2: Convert to fraction form
    8,460.45/11,676.15 = 4,923.99/x
  3. Step 3: Cross multiply
    8,460.45x = 11,676.15 × 4,923.99
  4. Step 4: Simplify right side
    8,460.45x = 57,493,245.84
  5. Step 5: Solve for x
    x = 57,493,245.84/8,460.45
  6. Step 6: Final answer
    x = 6,795.53

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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.