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Finding the Fourth Proportional to 36,638.67, 54,921.07 and 14,443.45

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Solution

The fourth proportional to 36,638.67, 54,921.07 and 14,443.45 is: 21,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,638.67 : 54,921.07 = 14,443.45 : x
  2. Step 2: Convert to fraction form
    36,638.67/54,921.07 = 14,443.45/x
  3. Step 3: Cross multiply
    36,638.67x = 54,921.07 × 14,443.45
  4. Step 4: Simplify right side
    36,638.67x = 793,249,728.49
  5. Step 5: Solve for x
    x = 793,249,728.49/36,638.67
  6. Step 6: Final answer
    x = 21,650.61

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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.