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Finding the Fourth Proportional to 6,190.88, 8,559.63 and 5,915.48

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Solution

The fourth proportional to 6,190.88, 8,559.63 and 5,915.48 is: 8,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190.88 : 8,559.63 = 5,915.48 : x
  2. Step 2: Convert to fraction form
    6,190.88/8,559.63 = 5,915.48/x
  3. Step 3: Cross multiply
    6,190.88x = 8,559.63 × 5,915.48
  4. Step 4: Simplify right side
    6,190.88x = 50,634,277.27
  5. Step 5: Solve for x
    x = 50,634,277.27/6,190.88
  6. Step 6: Final answer
    x = 8,178.86

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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.