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Finding the Fourth Proportional to 70,034.20, 105,057.82 and 27,904.12

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Solution

The fourth proportional to 70,034.20, 105,057.82 and 27,904.12 is: 41,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,034.20 : 105,057.82 = 27,904.12 : x
  2. Step 2: Convert to fraction form
    70,034.20/105,057.82 = 27,904.12/x
  3. Step 3: Cross multiply
    70,034.20x = 105,057.82 × 27,904.12
  4. Step 4: Simplify right side
    70,034.20x = 2,931,546,016.22
  5. Step 5: Solve for x
    x = 2,931,546,016.22/70,034.20
  6. Step 6: Final answer
    x = 41,858.78

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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.