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Finding the Fourth Proportional to 18,125.17, 27,194.69 and 7,039.65

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Solution

The fourth proportional to 18,125.17, 27,194.69 and 7,039.65 is: 10,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.17 : 27,194.69 = 7,039.65 : x
  2. Step 2: Convert to fraction form
    18,125.17/27,194.69 = 7,039.65/x
  3. Step 3: Cross multiply
    18,125.17x = 27,194.69 × 7,039.65
  4. Step 4: Simplify right side
    18,125.17x = 191,441,099.46
  5. Step 5: Solve for x
    x = 191,441,099.46/18,125.17
  6. Step 6: Final answer
    x = 10,562.17

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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.