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Finding the Fourth Proportional to 5,898.75, 8,136.63 and 3,908.58

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Solution

The fourth proportional to 5,898.75, 8,136.63 and 3,908.58 is: 5,391.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898.75 : 8,136.63 = 3,908.58 : x
  2. Step 2: Convert to fraction form
    5,898.75/8,136.63 = 3,908.58/x
  3. Step 3: Cross multiply
    5,898.75x = 8,136.63 × 3,908.58
  4. Step 4: Simplify right side
    5,898.75x = 31,802,669.29
  5. Step 5: Solve for x
    x = 31,802,669.29/5,898.75
  6. Step 6: Final answer
    x = 5,391.43

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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.