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Finding the Fourth Proportional to 8,589.81, 11,842.29 and 7,344.24

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Solution

The fourth proportional to 8,589.81, 11,842.29 and 7,344.24 is: 10,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.81 : 11,842.29 = 7,344.24 : x
  2. Step 2: Convert to fraction form
    8,589.81/11,842.29 = 7,344.24/x
  3. Step 3: Cross multiply
    8,589.81x = 11,842.29 × 7,344.24
  4. Step 4: Simplify right side
    8,589.81x = 86,972,619.91
  5. Step 5: Solve for x
    x = 86,972,619.91/8,589.81
  6. Step 6: Final answer
    x = 10,125.09

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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.