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Finding the Fourth Proportional to 16,929.60, 23,359.53 and 9,375.56

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Solution

The fourth proportional to 16,929.60, 23,359.53 and 9,375.56 is: 12,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,929.60 : 23,359.53 = 9,375.56 : x
  2. Step 2: Convert to fraction form
    16,929.60/23,359.53 = 9,375.56/x
  3. Step 3: Cross multiply
    16,929.60x = 23,359.53 × 9,375.56
  4. Step 4: Simplify right side
    16,929.60x = 219,008,675.09
  5. Step 5: Solve for x
    x = 219,008,675.09/16,929.60
  6. Step 6: Final answer
    x = 12,936.44

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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.