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Finding the Fourth Proportional to 29,472.36, 40,620.60 and 25,671.84

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Solution

The fourth proportional to 29,472.36, 40,620.60 and 25,671.84 is: 35,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.36 : 40,620.60 = 25,671.84 : x
  2. Step 2: Convert to fraction form
    29,472.36/40,620.60 = 25,671.84/x
  3. Step 3: Cross multiply
    29,472.36x = 40,620.60 × 25,671.84
  4. Step 4: Simplify right side
    29,472.36x = 1,042,805,543.90
  5. Step 5: Solve for x
    x = 1,042,805,543.90/29,472.36
  6. Step 6: Final answer
    x = 35,382.49

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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.