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Finding the Fourth Proportional to 8,560.98, 11,813.79 and 5,375.94

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Solution

The fourth proportional to 8,560.98, 11,813.79 and 5,375.94 is: 7,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.98 : 11,813.79 = 5,375.94 : x
  2. Step 2: Convert to fraction form
    8,560.98/11,813.79 = 5,375.94/x
  3. Step 3: Cross multiply
    8,560.98x = 11,813.79 × 5,375.94
  4. Step 4: Simplify right side
    8,560.98x = 63,510,226.21
  5. Step 5: Solve for x
    x = 63,510,226.21/8,560.98
  6. Step 6: Final answer
    x = 7,418.57

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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.