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Finding the Fourth Proportional to 18,325.41, 25,289.06 and 9,941.91

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Solution

The fourth proportional to 18,325.41, 25,289.06 and 9,941.91 is: 13,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.41 : 25,289.06 = 9,941.91 : x
  2. Step 2: Convert to fraction form
    18,325.41/25,289.06 = 9,941.91/x
  3. Step 3: Cross multiply
    18,325.41x = 25,289.06 × 9,941.91
  4. Step 4: Simplify right side
    18,325.41x = 251,421,469.88
  5. Step 5: Solve for x
    x = 251,421,469.88/18,325.41
  6. Step 6: Final answer
    x = 13,719.83

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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.