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Finding the Fourth Proportional to 70,615.75, 105,923.53 and 18,025.24

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Solution

The fourth proportional to 70,615.75, 105,923.53 and 18,025.24 is: 27,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.75 : 105,923.53 = 18,025.24 : x
  2. Step 2: Convert to fraction form
    70,615.75/105,923.53 = 18,025.24/x
  3. Step 3: Cross multiply
    70,615.75x = 105,923.53 × 18,025.24
  4. Step 4: Simplify right side
    70,615.75x = 1,909,297,049.90
  5. Step 5: Solve for x
    x = 1,909,297,049.90/70,615.75
  6. Step 6: Final answer
    x = 27,037.84

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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.