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Finding the Fourth Proportional to 45,819.55, 68,707.75 and 17,752.75

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Solution

The fourth proportional to 45,819.55, 68,707.75 and 17,752.75 is: 26,620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,819.55 : 68,707.75 = 17,752.75 : x
  2. Step 2: Convert to fraction form
    45,819.55/68,707.75 = 17,752.75/x
  3. Step 3: Cross multiply
    45,819.55x = 68,707.75 × 17,752.75
  4. Step 4: Simplify right side
    45,819.55x = 1,219,751,508.81
  5. Step 5: Solve for x
    x = 1,219,751,508.81/45,819.55
  6. Step 6: Final answer
    x = 26,620.77

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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.