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Finding the Fourth Proportional to 20,505.88, 30,733.44 and 14,573.31

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Solution

The fourth proportional to 20,505.88, 30,733.44 and 14,573.31 is: 21,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.88 : 30,733.44 = 14,573.31 : x
  2. Step 2: Convert to fraction form
    20,505.88/30,733.44 = 14,573.31/x
  3. Step 3: Cross multiply
    20,505.88x = 30,733.44 × 14,573.31
  4. Step 4: Simplify right side
    20,505.88x = 447,887,948.49
  5. Step 5: Solve for x
    x = 447,887,948.49/20,505.88
  6. Step 6: Final answer
    x = 21,841.93

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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.