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Finding the Fourth Proportional to 12,057.87, 18,064.90 and 11,795.43

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Solution

The fourth proportional to 12,057.87, 18,064.90 and 11,795.43 is: 17,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.87 : 18,064.90 = 11,795.43 : x
  2. Step 2: Convert to fraction form
    12,057.87/18,064.90 = 11,795.43/x
  3. Step 3: Cross multiply
    12,057.87x = 18,064.90 × 11,795.43
  4. Step 4: Simplify right side
    12,057.87x = 213,083,263.41
  5. Step 5: Solve for x
    x = 213,083,263.41/12,057.87
  6. Step 6: Final answer
    x = 17,671.72

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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.