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Finding the Fourth Proportional to 40,751.34, 61,120.45 and 11,162.25

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Solution

The fourth proportional to 40,751.34, 61,120.45 and 11,162.25 is: 16,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,751.34 : 61,120.45 = 11,162.25 : x
  2. Step 2: Convert to fraction form
    40,751.34/61,120.45 = 11,162.25/x
  3. Step 3: Cross multiply
    40,751.34x = 61,120.45 × 11,162.25
  4. Step 4: Simplify right side
    40,751.34x = 682,241,867.91
  5. Step 5: Solve for x
    x = 682,241,867.91/40,751.34
  6. Step 6: Final answer
    x = 16,741.58

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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.