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Finding the Fourth Proportional to 12,625.58, 18,928.05 and 5,226.03

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Solution

The fourth proportional to 12,625.58, 18,928.05 and 5,226.03 is: 7,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.58 : 18,928.05 = 5,226.03 : x
  2. Step 2: Convert to fraction form
    12,625.58/18,928.05 = 5,226.03/x
  3. Step 3: Cross multiply
    12,625.58x = 18,928.05 × 5,226.03
  4. Step 4: Simplify right side
    12,625.58x = 98,918,537.54
  5. Step 5: Solve for x
    x = 98,918,537.54/12,625.58
  6. Step 6: Final answer
    x = 7,834.77

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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.