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Finding the Fourth Proportional to 8,745.56, 12,069.12 and 5,019.56

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Solution

The fourth proportional to 8,745.56, 12,069.12 and 5,019.56 is: 6,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.56 : 12,069.12 = 5,019.56 : x
  2. Step 2: Convert to fraction form
    8,745.56/12,069.12 = 5,019.56/x
  3. Step 3: Cross multiply
    8,745.56x = 12,069.12 × 5,019.56
  4. Step 4: Simplify right side
    8,745.56x = 60,581,671.99
  5. Step 5: Solve for x
    x = 60,581,671.99/8,745.56
  6. Step 6: Final answer
    x = 6,927.13

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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.