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Finding the Fourth Proportional to 18,406.54, 25,401.02 and 10,023.04

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Solution

The fourth proportional to 18,406.54, 25,401.02 and 10,023.04 is: 13,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.54 : 25,401.02 = 10,023.04 : x
  2. Step 2: Convert to fraction form
    18,406.54/25,401.02 = 10,023.04/x
  3. Step 3: Cross multiply
    18,406.54x = 25,401.02 × 10,023.04
  4. Step 4: Simplify right side
    18,406.54x = 254,595,439.50
  5. Step 5: Solve for x
    x = 254,595,439.50/18,406.54
  6. Step 6: Final answer
    x = 13,831.79

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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.