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Finding the Fourth Proportional to 43,807.80, 65,744.10 and 29,011.80

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Solution

The fourth proportional to 43,807.80, 65,744.10 and 29,011.80 is: 43,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.80 : 65,744.10 = 29,011.80 : x
  2. Step 2: Convert to fraction form
    43,807.80/65,744.10 = 29,011.80/x
  3. Step 3: Cross multiply
    43,807.80x = 65,744.10 × 29,011.80
  4. Step 4: Simplify right side
    43,807.80x = 1,907,354,680.38
  5. Step 5: Solve for x
    x = 1,907,354,680.38/43,807.80
  6. Step 6: Final answer
    x = 43,539.16

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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.