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Finding the Fourth Proportional to 7,999.95, 11,040.26 and 4,462.48

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Solution

The fourth proportional to 7,999.95, 11,040.26 and 4,462.48 is: 6,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.95 : 11,040.26 = 4,462.48 : x
  2. Step 2: Convert to fraction form
    7,999.95/11,040.26 = 4,462.48/x
  3. Step 3: Cross multiply
    7,999.95x = 11,040.26 × 4,462.48
  4. Step 4: Simplify right side
    7,999.95x = 49,266,939.44
  5. Step 5: Solve for x
    x = 49,266,939.44/7,999.95
  6. Step 6: Final answer
    x = 6,158.41

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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.