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Finding the Fourth Proportional to 18,755.96, 25,861.88 and 17,612.03

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Solution

The fourth proportional to 18,755.96, 25,861.88 and 17,612.03 is: 24,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.96 : 25,861.88 = 17,612.03 : x
  2. Step 2: Convert to fraction form
    18,755.96/25,861.88 = 17,612.03/x
  3. Step 3: Cross multiply
    18,755.96x = 25,861.88 × 17,612.03
  4. Step 4: Simplify right side
    18,755.96x = 455,480,315.10
  5. Step 5: Solve for x
    x = 455,480,315.10/18,755.96
  6. Step 6: Final answer
    x = 24,284.57

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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.