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Finding the Fourth Proportional to 71,063.92, 98,072.94 and 47,149.48

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Solution

The fourth proportional to 71,063.92, 98,072.94 and 47,149.48 is: 65,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,063.92 : 98,072.94 = 47,149.48 : x
  2. Step 2: Convert to fraction form
    71,063.92/98,072.94 = 47,149.48/x
  3. Step 3: Cross multiply
    71,063.92x = 98,072.94 × 47,149.48
  4. Step 4: Simplify right side
    71,063.92x = 4,624,088,123.07
  5. Step 5: Solve for x
    x = 4,624,088,123.07/71,063.92
  6. Step 6: Final answer
    x = 65,069.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.