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Finding the Fourth Proportional to 29,661.32, 40,939.62 and 17,730.02

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Solution

The fourth proportional to 29,661.32, 40,939.62 and 17,730.02 is: 24,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,661.32 : 40,939.62 = 17,730.02 : x
  2. Step 2: Convert to fraction form
    29,661.32/40,939.62 = 17,730.02/x
  3. Step 3: Cross multiply
    29,661.32x = 40,939.62 × 17,730.02
  4. Step 4: Simplify right side
    29,661.32x = 725,860,281.39
  5. Step 5: Solve for x
    x = 725,860,281.39/29,661.32
  6. Step 6: Final answer
    x = 24,471.61

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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.