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Finding the Fourth Proportional to 8,599.91, 12,911.82 and 4,442.99

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Solution

The fourth proportional to 8,599.91, 12,911.82 and 4,442.99 is: 6,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.91 : 12,911.82 = 4,442.99 : x
  2. Step 2: Convert to fraction form
    8,599.91/12,911.82 = 4,442.99/x
  3. Step 3: Cross multiply
    8,599.91x = 12,911.82 × 4,442.99
  4. Step 4: Simplify right side
    8,599.91x = 57,367,087.14
  5. Step 5: Solve for x
    x = 57,367,087.14/8,599.91
  6. Step 6: Final answer
    x = 6,670.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.