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Finding the Fourth Proportional to 34,976.31, 52,435.31 and 17,421.99

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Solution

The fourth proportional to 34,976.31, 52,435.31 and 17,421.99 is: 26,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,976.31 : 52,435.31 = 17,421.99 : x
  2. Step 2: Convert to fraction form
    34,976.31/52,435.31 = 17,421.99/x
  3. Step 3: Cross multiply
    34,976.31x = 52,435.31 × 17,421.99
  4. Step 4: Simplify right side
    34,976.31x = 913,527,359.36
  5. Step 5: Solve for x
    x = 913,527,359.36/34,976.31
  6. Step 6: Final answer
    x = 26,118.46

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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.