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Finding the Fourth Proportional to 70,249.73, 96,946.04 and 38,420.67

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Solution

The fourth proportional to 70,249.73, 96,946.04 and 38,420.67 is: 53,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,249.73 : 96,946.04 = 38,420.67 : x
  2. Step 2: Convert to fraction form
    70,249.73/96,946.04 = 38,420.67/x
  3. Step 3: Cross multiply
    70,249.73x = 96,946.04 × 38,420.67
  4. Step 4: Simplify right side
    70,249.73x = 3,724,731,618.54
  5. Step 5: Solve for x
    x = 3,724,731,618.54/70,249.73
  6. Step 6: Final answer
    x = 53,021.30

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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.