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Finding the Fourth Proportional to 70,043.82, 96,660.34 and 38,212.73

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Solution

The fourth proportional to 70,043.82, 96,660.34 and 38,212.73 is: 52,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,043.82 : 96,660.34 = 38,212.73 : x
  2. Step 2: Convert to fraction form
    70,043.82/96,660.34 = 38,212.73/x
  3. Step 3: Cross multiply
    70,043.82x = 96,660.34 × 38,212.73
  4. Step 4: Simplify right side
    70,043.82x = 3,693,655,474.13
  5. Step 5: Solve for x
    x = 3,693,655,474.13/70,043.82
  6. Step 6: Final answer
    x = 52,733.50

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Double scale
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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.