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Finding the Fourth Proportional to 23,747.88, 32,770.80 and 13,135.80

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Solution

The fourth proportional to 23,747.88, 32,770.80 and 13,135.80 is: 18,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,747.88 : 32,770.80 = 13,135.80 : x
  2. Step 2: Convert to fraction form
    23,747.88/32,770.80 = 13,135.80/x
  3. Step 3: Cross multiply
    23,747.88x = 32,770.80 × 13,135.80
  4. Step 4: Simplify right side
    23,747.88x = 430,470,674.64
  5. Step 5: Solve for x
    x = 430,470,674.64/23,747.88
  6. Step 6: Final answer
    x = 18,126.70

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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.