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Finding the Fourth Proportional to 36,234.40, 54,335.40 and 14,040.40

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Solution

The fourth proportional to 36,234.40, 54,335.40 and 14,040.40 is: 21,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,234.40 : 54,335.40 = 14,040.40 : x
  2. Step 2: Convert to fraction form
    36,234.40/54,335.40 = 14,040.40/x
  3. Step 3: Cross multiply
    36,234.40x = 54,335.40 × 14,040.40
  4. Step 4: Simplify right side
    36,234.40x = 762,890,750.16
  5. Step 5: Solve for x
    x = 762,890,750.16/36,234.40
  6. Step 6: Final answer
    x = 21,054.32

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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.