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Finding the Fourth Proportional to 5,895.86, 8,136.40 and 3,243.21

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Solution

The fourth proportional to 5,895.86, 8,136.40 and 3,243.21 is: 4,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,895.86 : 8,136.40 = 3,243.21 : x
  2. Step 2: Convert to fraction form
    5,895.86/8,136.40 = 3,243.21/x
  3. Step 3: Cross multiply
    5,895.86x = 8,136.40 × 3,243.21
  4. Step 4: Simplify right side
    5,895.86x = 26,388,089.96
  5. Step 5: Solve for x
    x = 26,388,089.96/5,895.86
  6. Step 6: Final answer
    x = 4,475.70

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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.