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Finding the Fourth Proportional to 34,704.63, 47,892.63 and 18,789.12

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Solution

The fourth proportional to 34,704.63, 47,892.63 and 18,789.12 is: 25,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,704.63 : 47,892.63 = 18,789.12 : x
  2. Step 2: Convert to fraction form
    34,704.63/47,892.63 = 18,789.12/x
  3. Step 3: Cross multiply
    34,704.63x = 47,892.63 × 18,789.12
  4. Step 4: Simplify right side
    34,704.63x = 899,860,372.19
  5. Step 5: Solve for x
    x = 899,860,372.19/34,704.63
  6. Step 6: Final answer
    x = 25,929.12

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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.