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Finding the Fourth Proportional to 70,677.96, 105,864.70 and 33,181.85

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Solution

The fourth proportional to 70,677.96, 105,864.70 and 33,181.85 is: 49,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,677.96 : 105,864.70 = 33,181.85 : x
  2. Step 2: Convert to fraction form
    70,677.96/105,864.70 = 33,181.85/x
  3. Step 3: Cross multiply
    70,677.96x = 105,864.70 × 33,181.85
  4. Step 4: Simplify right side
    70,677.96x = 3,512,786,331.03
  5. Step 5: Solve for x
    x = 3,512,786,331.03/70,677.96
  6. Step 6: Final answer
    x = 49,701.30

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1.5x scale

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.