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Finding the Fourth Proportional to 32,469.10, 44,807.16 and 18,128.11

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Solution

The fourth proportional to 32,469.10, 44,807.16 and 18,128.11 is: 25,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,469.10 : 44,807.16 = 18,128.11 : x
  2. Step 2: Convert to fraction form
    32,469.10/44,807.16 = 18,128.11/x
  3. Step 3: Cross multiply
    32,469.10x = 44,807.16 × 18,128.11
  4. Step 4: Simplify right side
    32,469.10x = 812,269,125.27
  5. Step 5: Solve for x
    x = 812,269,125.27/32,469.10
  6. Step 6: Final answer
    x = 25,016.68

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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.