Home / 43,942.29-65,915.25-12,777.54

Finding the Fourth Proportional to 43,942.29, 65,915.25 and 12,777.54

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Solution

The fourth proportional to 43,942.29, 65,915.25 and 12,777.54 is: 19,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,942.29 : 65,915.25 = 12,777.54 : x
  2. Step 2: Convert to fraction form
    43,942.29/65,915.25 = 12,777.54/x
  3. Step 3: Cross multiply
    43,942.29x = 65,915.25 × 12,777.54
  4. Step 4: Simplify right side
    43,942.29x = 842,234,743.49
  5. Step 5: Solve for x
    x = 842,234,743.49/43,942.29
  6. Step 6: Final answer
    x = 19,166.84

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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.