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Finding the Fourth Proportional to 16,912.60, 23,325.16 and 12,673.60

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Solution

The fourth proportional to 16,912.60, 23,325.16 and 12,673.60 is: 17,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.60 : 23,325.16 = 12,673.60 : x
  2. Step 2: Convert to fraction form
    16,912.60/23,325.16 = 12,673.60/x
  3. Step 3: Cross multiply
    16,912.60x = 23,325.16 × 12,673.60
  4. Step 4: Simplify right side
    16,912.60x = 295,613,747.78
  5. Step 5: Solve for x
    x = 295,613,747.78/16,912.60
  6. Step 6: Final answer
    x = 17,478.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.