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Finding the Fourth Proportional to 25,134.69, 37,702.94 and 12,647.92

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Solution

The fourth proportional to 25,134.69, 37,702.94 and 12,647.92 is: 18,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,134.69 : 37,702.94 = 12,647.92 : x
  2. Step 2: Convert to fraction form
    25,134.69/37,702.94 = 12,647.92/x
  3. Step 3: Cross multiply
    25,134.69x = 37,702.94 × 12,647.92
  4. Step 4: Simplify right side
    25,134.69x = 476,863,768.88
  5. Step 5: Solve for x
    x = 476,863,768.88/25,134.69
  6. Step 6: Final answer
    x = 18,972.34

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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.