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Finding the Fourth Proportional to 43,363.85, 65,051.85 and 18,403.70

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Solution

The fourth proportional to 43,363.85, 65,051.85 and 18,403.70 is: 27,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,363.85 : 65,051.85 = 18,403.70 : x
  2. Step 2: Convert to fraction form
    43,363.85/65,051.85 = 18,403.70/x
  3. Step 3: Cross multiply
    43,363.85x = 65,051.85 × 18,403.70
  4. Step 4: Simplify right side
    43,363.85x = 1,197,194,731.85
  5. Step 5: Solve for x
    x = 1,197,194,731.85/43,363.85
  6. Step 6: Final answer
    x = 27,608.13

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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.