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Finding the Fourth Proportional to 14,630.12, 21,939.99 and 5,267.63

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Solution

The fourth proportional to 14,630.12, 21,939.99 and 5,267.63 is: 7,899.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.12 : 21,939.99 = 5,267.63 : x
  2. Step 2: Convert to fraction form
    14,630.12/21,939.99 = 5,267.63/x
  3. Step 3: Cross multiply
    14,630.12x = 21,939.99 × 5,267.63
  4. Step 4: Simplify right side
    14,630.12x = 115,571,613.49
  5. Step 5: Solve for x
    x = 115,571,613.49/14,630.12
  6. Step 6: Final answer
    x = 7,899.57

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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.