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Finding the Fourth Proportional to 6,955.94, 10,420.79 and 3,441.89

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Solution

The fourth proportional to 6,955.94, 10,420.79 and 3,441.89 is: 5,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,955.94 : 10,420.79 = 3,441.89 : x
  2. Step 2: Convert to fraction form
    6,955.94/10,420.79 = 3,441.89/x
  3. Step 3: Cross multiply
    6,955.94x = 10,420.79 × 3,441.89
  4. Step 4: Simplify right side
    6,955.94x = 35,867,221.74
  5. Step 5: Solve for x
    x = 35,867,221.74/6,955.94
  6. Step 6: Final answer
    x = 5,156.34

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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.