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Finding the Fourth Proportional to 43,559.88, 65,333.67 and 13,973.87

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Solution

The fourth proportional to 43,559.88, 65,333.67 and 13,973.87 is: 20,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,559.88 : 65,333.67 = 13,973.87 : x
  2. Step 2: Convert to fraction form
    43,559.88/65,333.67 = 13,973.87/x
  3. Step 3: Cross multiply
    43,559.88x = 65,333.67 × 13,973.87
  4. Step 4: Simplify right side
    43,559.88x = 912,963,884.53
  5. Step 5: Solve for x
    x = 912,963,884.53/43,559.88
  6. Step 6: Final answer
    x = 20,958.82

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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.