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Finding the Fourth Proportional to 18,157.96, 27,185.82 and 14,465.80

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Solution

The fourth proportional to 18,157.96, 27,185.82 and 14,465.80 is: 21,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.96 : 27,185.82 = 14,465.80 : x
  2. Step 2: Convert to fraction form
    18,157.96/27,185.82 = 14,465.80/x
  3. Step 3: Cross multiply
    18,157.96x = 27,185.82 × 14,465.80
  4. Step 4: Simplify right side
    18,157.96x = 393,264,634.96
  5. Step 5: Solve for x
    x = 393,264,634.96/18,157.96
  6. Step 6: Final answer
    x = 21,657.97

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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.