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Finding the Fourth Proportional to 25,099.68, 37,662.72 and 11,949.60

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Solution

The fourth proportional to 25,099.68, 37,662.72 and 11,949.60 is: 17,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,099.68 : 37,662.72 = 11,949.60 : x
  2. Step 2: Convert to fraction form
    25,099.68/37,662.72 = 11,949.60/x
  3. Step 3: Cross multiply
    25,099.68x = 37,662.72 × 11,949.60
  4. Step 4: Simplify right side
    25,099.68x = 450,054,438.91
  5. Step 5: Solve for x
    x = 450,054,438.91/25,099.68
  6. Step 6: Final answer
    x = 17,930.68

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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.