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Finding the Fourth Proportional to 7,967.26, 11,955.43 and 7,539.72

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Solution

The fourth proportional to 7,967.26, 11,955.43 and 7,539.72 is: 11,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.26 : 11,955.43 = 7,539.72 : x
  2. Step 2: Convert to fraction form
    7,967.26/11,955.43 = 7,539.72/x
  3. Step 3: Cross multiply
    7,967.26x = 11,955.43 × 7,539.72
  4. Step 4: Simplify right side
    7,967.26x = 90,140,559.27
  5. Step 5: Solve for x
    x = 90,140,559.27/7,967.26
  6. Step 6: Final answer
    x = 11,313.87

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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.