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Finding the Fourth Proportional to 18,305.30, 25,262.88 and 10,348.94

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Solution

The fourth proportional to 18,305.30, 25,262.88 and 10,348.94 is: 14,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.30 : 25,262.88 = 10,348.94 : x
  2. Step 2: Convert to fraction form
    18,305.30/25,262.88 = 10,348.94/x
  3. Step 3: Cross multiply
    18,305.30x = 25,262.88 × 10,348.94
  4. Step 4: Simplify right side
    18,305.30x = 261,444,029.35
  5. Step 5: Solve for x
    x = 261,444,029.35/18,305.30
  6. Step 6: Final answer
    x = 14,282.42

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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.