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Finding the Fourth Proportional to 54,668.40, 82,002.60 and 34,969.20

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Solution

The fourth proportional to 54,668.40, 82,002.60 and 34,969.20 is: 52,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,668.40 : 82,002.60 = 34,969.20 : x
  2. Step 2: Convert to fraction form
    54,668.40/82,002.60 = 34,969.20/x
  3. Step 3: Cross multiply
    54,668.40x = 82,002.60 × 34,969.20
  4. Step 4: Simplify right side
    54,668.40x = 2,867,565,319.92
  5. Step 5: Solve for x
    x = 2,867,565,319.92/54,668.40
  6. Step 6: Final answer
    x = 52,453.80

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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.