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Finding the Fourth Proportional to 71,072.92, 106,596.48 and 18,479.14

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Solution

The fourth proportional to 71,072.92, 106,596.48 and 18,479.14 is: 27,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.92 : 106,596.48 = 18,479.14 : x
  2. Step 2: Convert to fraction form
    71,072.92/106,596.48 = 18,479.14/x
  3. Step 3: Cross multiply
    71,072.92x = 106,596.48 × 18,479.14
  4. Step 4: Simplify right side
    71,072.92x = 1,969,811,277.43
  5. Step 5: Solve for x
    x = 1,969,811,277.43/71,072.92
  6. Step 6: Final answer
    x = 27,715.36

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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.