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Finding the Fourth Proportional to 8,026.56, 11,065.32 and 6,919.20

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Solution

The fourth proportional to 8,026.56, 11,065.32 and 6,919.20 is: 9,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,026.56 : 11,065.32 = 6,919.20 : x
  2. Step 2: Convert to fraction form
    8,026.56/11,065.32 = 6,919.20/x
  3. Step 3: Cross multiply
    8,026.56x = 11,065.32 × 6,919.20
  4. Step 4: Simplify right side
    8,026.56x = 76,563,162.14
  5. Step 5: Solve for x
    x = 76,563,162.14/8,026.56
  6. Step 6: Final answer
    x = 9,538.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.