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Finding the Fourth Proportional to 43,309.80, 64,964.70 and 37,404.90

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Solution

The fourth proportional to 43,309.80, 64,964.70 and 37,404.90 is: 56,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.80 : 64,964.70 = 37,404.90 : x
  2. Step 2: Convert to fraction form
    43,309.80/64,964.70 = 37,404.90/x
  3. Step 3: Cross multiply
    43,309.80x = 64,964.70 × 37,404.90
  4. Step 4: Simplify right side
    43,309.80x = 2,429,998,107.03
  5. Step 5: Solve for x
    x = 2,429,998,107.03/43,309.80
  6. Step 6: Final answer
    x = 56,107.35

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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.