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Finding the Fourth Proportional to 7,719.15, 11,597.19 and 4,951.26

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Solution

The fourth proportional to 7,719.15, 11,597.19 and 4,951.26 is: 7,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.15 : 11,597.19 = 4,951.26 : x
  2. Step 2: Convert to fraction form
    7,719.15/11,597.19 = 4,951.26/x
  3. Step 3: Cross multiply
    7,719.15x = 11,597.19 × 4,951.26
  4. Step 4: Simplify right side
    7,719.15x = 57,420,702.96
  5. Step 5: Solve for x
    x = 57,420,702.96/7,719.15
  6. Step 6: Final answer
    x = 7,438.73

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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.