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Finding the Fourth Proportional to 4,558, 6,803.30 and 4,447.48

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Solution

The fourth proportional to 4,558, 6,803.30 and 4,447.48 is: 6,638.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,558 : 6,803.30 = 4,447.48 : x
  2. Step 2: Convert to fraction form
    4,558/6,803.30 = 4,447.48/x
  3. Step 3: Cross multiply
    4,558x = 6,803.30 × 4,447.48
  4. Step 4: Simplify right side
    4,558x = 30,257,540.68
  5. Step 5: Solve for x
    x = 30,257,540.68/4,558
  6. Step 6: Final answer
    x = 6,638.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.