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Finding the Fourth Proportional to 26,234.70, 39,348.45 and 8,702.70

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Solution

The fourth proportional to 26,234.70, 39,348.45 and 8,702.70 is: 13,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,234.70 : 39,348.45 = 8,702.70 : x
  2. Step 2: Convert to fraction form
    26,234.70/39,348.45 = 8,702.70/x
  3. Step 3: Cross multiply
    26,234.70x = 39,348.45 × 8,702.70
  4. Step 4: Simplify right side
    26,234.70x = 342,437,755.82
  5. Step 5: Solve for x
    x = 342,437,755.82/26,234.70
  6. Step 6: Final answer
    x = 13,052.86

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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.