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Finding the Fourth Proportional to 4,745.49, 7,115.49 and 1,968.99

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Solution

The fourth proportional to 4,745.49, 7,115.49 and 1,968.99 is: 2,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.49 : 7,115.49 = 1,968.99 : x
  2. Step 2: Convert to fraction form
    4,745.49/7,115.49 = 1,968.99/x
  3. Step 3: Cross multiply
    4,745.49x = 7,115.49 × 1,968.99
  4. Step 4: Simplify right side
    4,745.49x = 14,010,328.66
  5. Step 5: Solve for x
    x = 14,010,328.66/4,745.49
  6. Step 6: Final answer
    x = 2,952.35

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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.