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Finding the Fourth Proportional to 8,554.05, 11,718.85 and 8,234.23

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Solution

The fourth proportional to 8,554.05, 11,718.85 and 8,234.23 is: 11,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.05 : 11,718.85 = 8,234.23 : x
  2. Step 2: Convert to fraction form
    8,554.05/11,718.85 = 8,234.23/x
  3. Step 3: Cross multiply
    8,554.05x = 11,718.85 × 8,234.23
  4. Step 4: Simplify right side
    8,554.05x = 96,495,775.98
  5. Step 5: Solve for x
    x = 96,495,775.98/8,554.05
  6. Step 6: Final answer
    x = 11,280.71

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Half scale
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Double scale
Find fourth proportional to 8,555.05, 11,720.22 and 8,235.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.