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Finding the Fourth Proportional to 18,704.45, 25,814.52 and 10,748.22

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Solution

The fourth proportional to 18,704.45, 25,814.52 and 10,748.22 is: 14,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.45 : 25,814.52 = 10,748.22 : x
  2. Step 2: Convert to fraction form
    18,704.45/25,814.52 = 10,748.22/x
  3. Step 3: Cross multiply
    18,704.45x = 25,814.52 × 10,748.22
  4. Step 4: Simplify right side
    18,704.45x = 277,460,140.15
  5. Step 5: Solve for x
    x = 277,460,140.15/18,704.45
  6. Step 6: Final answer
    x = 14,833.91

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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.