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Finding the Fourth Proportional to 18,586.97, 25,671.30 and 12,241.94

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Solution

The fourth proportional to 18,586.97, 25,671.30 and 12,241.94 is: 16,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.97 : 25,671.30 = 12,241.94 : x
  2. Step 2: Convert to fraction form
    18,586.97/25,671.30 = 12,241.94/x
  3. Step 3: Cross multiply
    18,586.97x = 25,671.30 × 12,241.94
  4. Step 4: Simplify right side
    18,586.97x = 314,266,385.97
  5. Step 5: Solve for x
    x = 314,266,385.97/18,586.97
  6. Step 6: Final answer
    x = 16,907.89

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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.