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Finding the Fourth Proportional to 12,497.80, 18,748.80 and 3,733.60

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Solution

The fourth proportional to 12,497.80, 18,748.80 and 3,733.60 is: 5,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.80 : 18,748.80 = 3,733.60 : x
  2. Step 2: Convert to fraction form
    12,497.80/18,748.80 = 3,733.60/x
  3. Step 3: Cross multiply
    12,497.80x = 18,748.80 × 3,733.60
  4. Step 4: Simplify right side
    12,497.80x = 70,000,519.68
  5. Step 5: Solve for x
    x = 70,000,519.68/12,497.80
  6. Step 6: Final answer
    x = 5,601.03

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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.