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Finding the Fourth Proportional to 34,755.71, 47,963.21 and 18,840.42

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Solution

The fourth proportional to 34,755.71, 47,963.21 and 18,840.42 is: 25,999.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,755.71 : 47,963.21 = 18,840.42 : x
  2. Step 2: Convert to fraction form
    34,755.71/47,963.21 = 18,840.42/x
  3. Step 3: Cross multiply
    34,755.71x = 47,963.21 × 18,840.42
  4. Step 4: Simplify right side
    34,755.71x = 903,646,926.75
  5. Step 5: Solve for x
    x = 903,646,926.75/34,755.71
  6. Step 6: Final answer
    x = 25,999.96

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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.