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Finding the Fourth Proportional to 13,882.65, 19,161.06 and 8,845.68

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Solution

The fourth proportional to 13,882.65, 19,161.06 and 8,845.68 is: 12,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.65 : 19,161.06 = 8,845.68 : x
  2. Step 2: Convert to fraction form
    13,882.65/19,161.06 = 8,845.68/x
  3. Step 3: Cross multiply
    13,882.65x = 19,161.06 × 8,845.68
  4. Step 4: Simplify right side
    13,882.65x = 169,492,605.22
  5. Step 5: Solve for x
    x = 169,492,605.22/13,882.65
  6. Step 6: Final answer
    x = 12,208.95

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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.