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Finding the Fourth Proportional to 18,361.40, 25,337.22 and 10,401.80

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Solution

The fourth proportional to 18,361.40, 25,337.22 and 10,401.80 is: 14,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.40 : 25,337.22 = 10,401.80 : x
  2. Step 2: Convert to fraction form
    18,361.40/25,337.22 = 10,401.80/x
  3. Step 3: Cross multiply
    18,361.40x = 25,337.22 × 10,401.80
  4. Step 4: Simplify right side
    18,361.40x = 263,552,695.00
  5. Step 5: Solve for x
    x = 263,552,695.00/18,361.40
  6. Step 6: Final answer
    x = 14,353.63

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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.