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Finding the Fourth Proportional to 29,631.88, 40,892.04 and 16,203.28

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Solution

The fourth proportional to 29,631.88, 40,892.04 and 16,203.28 is: 22,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,631.88 : 40,892.04 = 16,203.28 : x
  2. Step 2: Convert to fraction form
    29,631.88/40,892.04 = 16,203.28/x
  3. Step 3: Cross multiply
    29,631.88x = 40,892.04 × 16,203.28
  4. Step 4: Simplify right side
    29,631.88x = 662,585,173.89
  5. Step 5: Solve for x
    x = 662,585,173.89/29,631.88
  6. Step 6: Final answer
    x = 22,360.55

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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.