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Finding the Fourth Proportional to 70,639.91, 105,975.47 and 23,253.09

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Solution

The fourth proportional to 70,639.91, 105,975.47 and 23,253.09 is: 34,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.91 : 105,975.47 = 23,253.09 : x
  2. Step 2: Convert to fraction form
    70,639.91/105,975.47 = 23,253.09/x
  3. Step 3: Cross multiply
    70,639.91x = 105,975.47 × 23,253.09
  4. Step 4: Simplify right side
    70,639.91x = 2,464,256,495.56
  5. Step 5: Solve for x
    x = 2,464,256,495.56/70,639.91
  6. Step 6: Final answer
    x = 34,884.76

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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.