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Finding the Fourth Proportional to 7,774.44, 11,720.28 and 7,273.32

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Solution

The fourth proportional to 7,774.44, 11,720.28 and 7,273.32 is: 10,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.44 : 11,720.28 = 7,273.32 : x
  2. Step 2: Convert to fraction form
    7,774.44/11,720.28 = 7,273.32/x
  3. Step 3: Cross multiply
    7,774.44x = 11,720.28 × 7,273.32
  4. Step 4: Simplify right side
    7,774.44x = 85,245,346.93
  5. Step 5: Solve for x
    x = 85,245,346.93/7,774.44
  6. Step 6: Final answer
    x = 10,964.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.