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Finding the Fourth Proportional to 11,877.26, 17,822.04 and 8,617.26

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Solution

The fourth proportional to 11,877.26, 17,822.04 and 8,617.26 is: 12,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.26 : 17,822.04 = 8,617.26 : x
  2. Step 2: Convert to fraction form
    11,877.26/17,822.04 = 8,617.26/x
  3. Step 3: Cross multiply
    11,877.26x = 17,822.04 × 8,617.26
  4. Step 4: Simplify right side
    11,877.26x = 153,577,120.10
  5. Step 5: Solve for x
    x = 153,577,120.10/11,877.26
  6. Step 6: Final answer
    x = 12,930.35

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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.