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Finding the Fourth Proportional to 8,381.99, 11,567.25 and 4,605.48

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Solution

The fourth proportional to 8,381.99, 11,567.25 and 4,605.48 is: 6,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.99 : 11,567.25 = 4,605.48 : x
  2. Step 2: Convert to fraction form
    8,381.99/11,567.25 = 4,605.48/x
  3. Step 3: Cross multiply
    8,381.99x = 11,567.25 × 4,605.48
  4. Step 4: Simplify right side
    8,381.99x = 53,272,738.53
  5. Step 5: Solve for x
    x = 53,272,738.53/8,381.99
  6. Step 6: Final answer
    x = 6,355.62

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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.