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Finding the Fourth Proportional to 14,883.99, 20,540.82 and 9,839.46

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Solution

The fourth proportional to 14,883.99, 20,540.82 and 9,839.46 is: 13,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.99 : 20,540.82 = 9,839.46 : x
  2. Step 2: Convert to fraction form
    14,883.99/20,540.82 = 9,839.46/x
  3. Step 3: Cross multiply
    14,883.99x = 20,540.82 × 9,839.46
  4. Step 4: Simplify right side
    14,883.99x = 202,110,575.14
  5. Step 5: Solve for x
    x = 202,110,575.14/14,883.99
  6. Step 6: Final answer
    x = 13,579.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.