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Finding the Fourth Proportional to 4,728.94, 7,091.97 and 2,675.50

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Solution

The fourth proportional to 4,728.94, 7,091.97 and 2,675.50 is: 4,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.94 : 7,091.97 = 2,675.50 : x
  2. Step 2: Convert to fraction form
    4,728.94/7,091.97 = 2,675.50/x
  3. Step 3: Cross multiply
    4,728.94x = 7,091.97 × 2,675.50
  4. Step 4: Simplify right side
    4,728.94x = 18,974,565.74
  5. Step 5: Solve for x
    x = 18,974,565.74/4,728.94
  6. Step 6: Final answer
    x = 4,012.44

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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.