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Finding the Fourth Proportional to 36,459.50, 54,689.26 and 11,835.50

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Solution

The fourth proportional to 36,459.50, 54,689.26 and 11,835.50 is: 17,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,459.50 : 54,689.26 = 11,835.50 : x
  2. Step 2: Convert to fraction form
    36,459.50/54,689.26 = 11,835.50/x
  3. Step 3: Cross multiply
    36,459.50x = 54,689.26 × 11,835.50
  4. Step 4: Simplify right side
    36,459.50x = 647,274,736.73
  5. Step 5: Solve for x
    x = 647,274,736.73/36,459.50
  6. Step 6: Final answer
    x = 17,753.25

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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.