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Finding the Fourth Proportional to 71,451.23, 98,601.23 and 39,619.44

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Solution

The fourth proportional to 71,451.23, 98,601.23 and 39,619.44 is: 54,674.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,451.23 : 98,601.23 = 39,619.44 : x
  2. Step 2: Convert to fraction form
    71,451.23/98,601.23 = 39,619.44/x
  3. Step 3: Cross multiply
    71,451.23x = 98,601.23 × 39,619.44
  4. Step 4: Simplify right side
    71,451.23x = 3,906,525,614.96
  5. Step 5: Solve for x
    x = 3,906,525,614.96/71,451.23
  6. Step 6: Final answer
    x = 54,674.02

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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.