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Finding the Fourth Proportional to 6,994.70, 9,654.36 and 4,340.54

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Solution

The fourth proportional to 6,994.70, 9,654.36 and 4,340.54 is: 5,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,994.70 : 9,654.36 = 4,340.54 : x
  2. Step 2: Convert to fraction form
    6,994.70/9,654.36 = 4,340.54/x
  3. Step 3: Cross multiply
    6,994.70x = 9,654.36 × 4,340.54
  4. Step 4: Simplify right side
    6,994.70x = 41,905,135.75
  5. Step 5: Solve for x
    x = 41,905,135.75/6,994.70
  6. Step 6: Final answer
    x = 5,990.98

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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.