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Finding the Fourth Proportional to 8,774.73, 12,108.69 and 5,236.65

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Solution

The fourth proportional to 8,774.73, 12,108.69 and 5,236.65 is: 7,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.73 : 12,108.69 = 5,236.65 : x
  2. Step 2: Convert to fraction form
    8,774.73/12,108.69 = 5,236.65/x
  3. Step 3: Cross multiply
    8,774.73x = 12,108.69 × 5,236.65
  4. Step 4: Simplify right side
    8,774.73x = 63,408,971.49
  5. Step 5: Solve for x
    x = 63,408,971.49/8,774.73
  6. Step 6: Final answer
    x = 7,226.32

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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.