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Finding the Fourth Proportional to 70,509.38, 105,732.94 and 33,039.19

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Solution

The fourth proportional to 70,509.38, 105,732.94 and 33,039.19 is: 49,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,509.38 : 105,732.94 = 33,039.19 : x
  2. Step 2: Convert to fraction form
    70,509.38/105,732.94 = 33,039.19/x
  3. Step 3: Cross multiply
    70,509.38x = 105,732.94 × 33,039.19
  4. Step 4: Simplify right side
    70,509.38x = 3,493,330,693.92
  5. Step 5: Solve for x
    x = 3,493,330,693.92/70,509.38
  6. Step 6: Final answer
    x = 49,544.20

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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.