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Finding the Fourth Proportional to 76,073.60, 104,964.72 and 47,768.96

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Solution

The fourth proportional to 76,073.60, 104,964.72 and 47,768.96 is: 65,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,073.60 : 104,964.72 = 47,768.96 : x
  2. Step 2: Convert to fraction form
    76,073.60/104,964.72 = 47,768.96/x
  3. Step 3: Cross multiply
    76,073.60x = 104,964.72 × 47,768.96
  4. Step 4: Simplify right side
    76,073.60x = 5,014,055,511.09
  5. Step 5: Solve for x
    x = 5,014,055,511.09/76,073.60
  6. Step 6: Final answer
    x = 65,910.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.