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Finding the Fourth Proportional to 11,915.99, 17,874.12 and 3,596.08

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Solution

The fourth proportional to 11,915.99, 17,874.12 and 3,596.08 is: 5,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.99 : 17,874.12 = 3,596.08 : x
  2. Step 2: Convert to fraction form
    11,915.99/17,874.12 = 3,596.08/x
  3. Step 3: Cross multiply
    11,915.99x = 17,874.12 × 3,596.08
  4. Step 4: Simplify right side
    11,915.99x = 64,276,765.45
  5. Step 5: Solve for x
    x = 64,276,765.45/11,915.99
  6. Step 6: Final answer
    x = 5,394.16

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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.