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Finding the Fourth Proportional to 43,913.80, 65,724.90 and 43,913.80

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Solution

The fourth proportional to 43,913.80, 65,724.90 and 43,913.80 is: 65,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,913.80 : 65,724.90 = 43,913.80 : x
  2. Step 2: Convert to fraction form
    43,913.80/65,724.90 = 43,913.80/x
  3. Step 3: Cross multiply
    43,913.80x = 65,724.90 × 43,913.80
  4. Step 4: Simplify right side
    43,913.80x = 2,886,230,113.62
  5. Step 5: Solve for x
    x = 2,886,230,113.62/43,913.80
  6. Step 6: Final answer
    x = 65,724.90

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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.