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Finding the Fourth Proportional to 12,994.56, 19,491.84 and 4,675.68

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Solution

The fourth proportional to 12,994.56, 19,491.84 and 4,675.68 is: 7,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,994.56 : 19,491.84 = 4,675.68 : x
  2. Step 2: Convert to fraction form
    12,994.56/19,491.84 = 4,675.68/x
  3. Step 3: Cross multiply
    12,994.56x = 19,491.84 × 4,675.68
  4. Step 4: Simplify right side
    12,994.56x = 91,137,606.45
  5. Step 5: Solve for x
    x = 91,137,606.45/12,994.56
  6. Step 6: Final answer
    x = 7,013.52

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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.