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Finding the Fourth Proportional to 12,043.88, 16,620.48 and 6,738.74

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Solution

The fourth proportional to 12,043.88, 16,620.48 and 6,738.74 is: 9,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.88 : 16,620.48 = 6,738.74 : x
  2. Step 2: Convert to fraction form
    12,043.88/16,620.48 = 6,738.74/x
  3. Step 3: Cross multiply
    12,043.88x = 16,620.48 × 6,738.74
  4. Step 4: Simplify right side
    12,043.88x = 112,001,093.40
  5. Step 5: Solve for x
    x = 112,001,093.40/12,043.88
  6. Step 6: Final answer
    x = 9,299.42

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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.