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Finding the Fourth Proportional to 18,179.94, 25,061.22 and 11,101.62

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Solution

The fourth proportional to 18,179.94, 25,061.22 and 11,101.62 is: 15,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.94 : 25,061.22 = 11,101.62 : x
  2. Step 2: Convert to fraction form
    18,179.94/25,061.22 = 11,101.62/x
  3. Step 3: Cross multiply
    18,179.94x = 25,061.22 × 11,101.62
  4. Step 4: Simplify right side
    18,179.94x = 278,220,141.18
  5. Step 5: Solve for x
    x = 278,220,141.18/18,179.94
  6. Step 6: Final answer
    x = 15,303.69

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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.