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Finding the Fourth Proportional to 43,483.98, 65,244.54 and 18,535.79

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Solution

The fourth proportional to 43,483.98, 65,244.54 and 18,535.79 is: 27,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,483.98 : 65,244.54 = 18,535.79 : x
  2. Step 2: Convert to fraction form
    43,483.98/65,244.54 = 18,535.79/x
  3. Step 3: Cross multiply
    43,483.98x = 65,244.54 × 18,535.79
  4. Step 4: Simplify right side
    43,483.98x = 1,209,358,765.86
  5. Step 5: Solve for x
    x = 1,209,358,765.86/43,483.98
  6. Step 6: Final answer
    x = 27,811.59

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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.