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Finding the Fourth Proportional to 34,700.90, 47,887.24 and 18,785.48

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Solution

The fourth proportional to 34,700.90, 47,887.24 and 18,785.48 is: 25,923.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,700.90 : 47,887.24 = 18,785.48 : x
  2. Step 2: Convert to fraction form
    34,700.90/47,887.24 = 18,785.48/x
  3. Step 3: Cross multiply
    34,700.90x = 47,887.24 × 18,785.48
  4. Step 4: Simplify right side
    34,700.90x = 899,584,789.28
  5. Step 5: Solve for x
    x = 899,584,789.28/34,700.90
  6. Step 6: Final answer
    x = 25,923.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.