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Finding the Fourth Proportional to 11,291.55, 16,940.03 and 4,714.08

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Solution

The fourth proportional to 11,291.55, 16,940.03 and 4,714.08 is: 7,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.55 : 16,940.03 = 4,714.08 : x
  2. Step 2: Convert to fraction form
    11,291.55/16,940.03 = 4,714.08/x
  3. Step 3: Cross multiply
    11,291.55x = 16,940.03 × 4,714.08
  4. Step 4: Simplify right side
    11,291.55x = 79,856,633.05
  5. Step 5: Solve for x
    x = 79,856,633.05/11,291.55
  6. Step 6: Final answer
    x = 7,072.25

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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.