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Finding the Fourth Proportional to 18,402.54, 27,604.73 and 5,256.86

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Solution

The fourth proportional to 18,402.54, 27,604.73 and 5,256.86 is: 7,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.54 : 27,604.73 = 5,256.86 : x
  2. Step 2: Convert to fraction form
    18,402.54/27,604.73 = 5,256.86/x
  3. Step 3: Cross multiply
    18,402.54x = 27,604.73 × 5,256.86
  4. Step 4: Simplify right side
    18,402.54x = 145,114,036.64
  5. Step 5: Solve for x
    x = 145,114,036.64/18,402.54
  6. Step 6: Final answer
    x = 7,885.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.