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Finding the Fourth Proportional to 7,969.01, 11,955.96 and 4,076.15

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Solution

The fourth proportional to 7,969.01, 11,955.96 and 4,076.15 is: 6,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.01 : 11,955.96 = 4,076.15 : x
  2. Step 2: Convert to fraction form
    7,969.01/11,955.96 = 4,076.15/x
  3. Step 3: Cross multiply
    7,969.01x = 11,955.96 × 4,076.15
  4. Step 4: Simplify right side
    7,969.01x = 48,734,226.57
  5. Step 5: Solve for x
    x = 48,734,226.57/7,969.01
  6. Step 6: Final answer
    x = 6,115.47

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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.