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Finding the Fourth Proportional to 43,483.70, 65,233.92 and 18,523.28

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Solution

The fourth proportional to 43,483.70, 65,233.92 and 18,523.28 is: 27,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,483.70 : 65,233.92 = 18,523.28 : x
  2. Step 2: Convert to fraction form
    43,483.70/65,233.92 = 18,523.28/x
  3. Step 3: Cross multiply
    43,483.70x = 65,233.92 × 18,523.28
  4. Step 4: Simplify right side
    43,483.70x = 1,208,346,165.66
  5. Step 5: Solve for x
    x = 1,208,346,165.66/43,483.70
  6. Step 6: Final answer
    x = 27,788.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.