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Finding the Fourth Proportional to 12,250.80, 18,372.60 and 4,852.80

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Solution

The fourth proportional to 12,250.80, 18,372.60 and 4,852.80 is: 7,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.80 : 18,372.60 = 4,852.80 : x
  2. Step 2: Convert to fraction form
    12,250.80/18,372.60 = 4,852.80/x
  3. Step 3: Cross multiply
    12,250.80x = 18,372.60 × 4,852.80
  4. Step 4: Simplify right side
    12,250.80x = 89,158,553.28
  5. Step 5: Solve for x
    x = 89,158,553.28/12,250.80
  6. Step 6: Final answer
    x = 7,277.77

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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.