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Finding the Fourth Proportional to 14,236.75, 19,647.12 and 7,949.53

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Solution

The fourth proportional to 14,236.75, 19,647.12 and 7,949.53 is: 10,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,236.75 : 19,647.12 = 7,949.53 : x
  2. Step 2: Convert to fraction form
    14,236.75/19,647.12 = 7,949.53/x
  3. Step 3: Cross multiply
    14,236.75x = 19,647.12 × 7,949.53
  4. Step 4: Simplify right side
    14,236.75x = 156,185,369.85
  5. Step 5: Solve for x
    x = 156,185,369.85/14,236.75
  6. Step 6: Final answer
    x = 10,970.58

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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.