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Finding the Fourth Proportional to 40,508.56, 60,694.80 and 28,763.56

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Solution

The fourth proportional to 40,508.56, 60,694.80 and 28,763.56 is: 43,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,508.56 : 60,694.80 = 28,763.56 : x
  2. Step 2: Convert to fraction form
    40,508.56/60,694.80 = 28,763.56/x
  3. Step 3: Cross multiply
    40,508.56x = 60,694.80 × 28,763.56
  4. Step 4: Simplify right side
    40,508.56x = 1,745,798,521.49
  5. Step 5: Solve for x
    x = 1,745,798,521.49/40,508.56
  6. Step 6: Final answer
    x = 43,097.03

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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.