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Finding the Fourth Proportional to 27,665.94, 41,491.20 and 12,859.94

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Solution

The fourth proportional to 27,665.94, 41,491.20 and 12,859.94 is: 19,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.94 : 41,491.20 = 12,859.94 : x
  2. Step 2: Convert to fraction form
    27,665.94/41,491.20 = 12,859.94/x
  3. Step 3: Cross multiply
    27,665.94x = 41,491.20 × 12,859.94
  4. Step 4: Simplify right side
    27,665.94x = 533,574,342.53
  5. Step 5: Solve for x
    x = 533,574,342.53/27,665.94
  6. Step 6: Final answer
    x = 19,286.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.