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Finding the Fourth Proportional to 7,674.22, 11,526.72 and 7,422.04

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Solution

The fourth proportional to 7,674.22, 11,526.72 and 7,422.04 is: 11,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.22 : 11,526.72 = 7,422.04 : x
  2. Step 2: Convert to fraction form
    7,674.22/11,526.72 = 7,422.04/x
  3. Step 3: Cross multiply
    7,674.22x = 11,526.72 × 7,422.04
  4. Step 4: Simplify right side
    7,674.22x = 85,551,776.91
  5. Step 5: Solve for x
    x = 85,551,776.91/7,674.22
  6. Step 6: Final answer
    x = 11,147.94

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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.