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Finding the Fourth Proportional to 14,433.50, 21,650.25 and 3,489.50

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Solution

The fourth proportional to 14,433.50, 21,650.25 and 3,489.50 is: 5,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,433.50 : 21,650.25 = 3,489.50 : x
  2. Step 2: Convert to fraction form
    14,433.50/21,650.25 = 3,489.50/x
  3. Step 3: Cross multiply
    14,433.50x = 21,650.25 × 3,489.50
  4. Step 4: Simplify right side
    14,433.50x = 75,548,547.38
  5. Step 5: Solve for x
    x = 75,548,547.38/14,433.50
  6. Step 6: Final answer
    x = 5,234.25

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Similar ratio
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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.