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Finding the Fourth Proportional to 7,955.37, 10,976.67 and 4,811.49

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Solution

The fourth proportional to 7,955.37, 10,976.67 and 4,811.49 is: 6,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.37 : 10,976.67 = 4,811.49 : x
  2. Step 2: Convert to fraction form
    7,955.37/10,976.67 = 4,811.49/x
  3. Step 3: Cross multiply
    7,955.37x = 10,976.67 × 4,811.49
  4. Step 4: Simplify right side
    7,955.37x = 52,814,137.94
  5. Step 5: Solve for x
    x = 52,814,137.94/7,955.37
  6. Step 6: Final answer
    x = 6,638.80

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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.