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Finding the Fourth Proportional to 70,670.88, 105,816.96 and 37,321.92

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Solution

The fourth proportional to 70,670.88, 105,816.96 and 37,321.92 is: 55,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,670.88 : 105,816.96 = 37,321.92 : x
  2. Step 2: Convert to fraction form
    70,670.88/105,816.96 = 37,321.92/x
  3. Step 3: Cross multiply
    70,670.88x = 105,816.96 × 37,321.92
  4. Step 4: Simplify right side
    70,670.88x = 3,949,292,115.76
  5. Step 5: Solve for x
    x = 3,949,292,115.76/70,670.88
  6. Step 6: Final answer
    x = 55,882.88

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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.