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Finding the Fourth Proportional to 29,694.40, 40,978.26 and 16,265.54

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Solution

The fourth proportional to 29,694.40, 40,978.26 and 16,265.54 is: 22,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,694.40 : 40,978.26 = 16,265.54 : x
  2. Step 2: Convert to fraction form
    29,694.40/40,978.26 = 16,265.54/x
  3. Step 3: Cross multiply
    29,694.40x = 40,978.26 × 16,265.54
  4. Step 4: Simplify right side
    29,694.40x = 666,533,527.16
  5. Step 5: Solve for x
    x = 666,533,527.16/29,694.40
  6. Step 6: Final answer
    x = 22,446.44

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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.