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Finding the Fourth Proportional to 16,906.60, 25,359.90 and 7,672.60

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Solution

The fourth proportional to 16,906.60, 25,359.90 and 7,672.60 is: 11,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.60 : 25,359.90 = 7,672.60 : x
  2. Step 2: Convert to fraction form
    16,906.60/25,359.90 = 7,672.60/x
  3. Step 3: Cross multiply
    16,906.60x = 25,359.90 × 7,672.60
  4. Step 4: Simplify right side
    16,906.60x = 194,576,368.74
  5. Step 5: Solve for x
    x = 194,576,368.74/16,906.60
  6. Step 6: Final answer
    x = 11,508.90

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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.