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Finding the Fourth Proportional to 29,638.59, 40,904.04 and 16,892.43

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Solution

The fourth proportional to 29,638.59, 40,904.04 and 16,892.43 is: 23,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,638.59 : 40,904.04 = 16,892.43 : x
  2. Step 2: Convert to fraction form
    29,638.59/40,904.04 = 16,892.43/x
  3. Step 3: Cross multiply
    29,638.59x = 40,904.04 × 16,892.43
  4. Step 4: Simplify right side
    29,638.59x = 690,968,632.42
  5. Step 5: Solve for x
    x = 690,968,632.42/29,638.59
  6. Step 6: Final answer
    x = 23,313.14

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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.