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Finding the Fourth Proportional to 18,170.10, 25,003.89 and 16,079.22

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Solution

The fourth proportional to 18,170.10, 25,003.89 and 16,079.22 is: 22,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.10 : 25,003.89 = 16,079.22 : x
  2. Step 2: Convert to fraction form
    18,170.10/25,003.89 = 16,079.22/x
  3. Step 3: Cross multiply
    18,170.10x = 25,003.89 × 16,079.22
  4. Step 4: Simplify right side
    18,170.10x = 402,043,048.17
  5. Step 5: Solve for x
    x = 402,043,048.17/18,170.10
  6. Step 6: Final answer
    x = 22,126.63

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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.