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Finding the Fourth Proportional to 18,643.92, 27,958.59 and 6,950.76

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Solution

The fourth proportional to 18,643.92, 27,958.59 and 6,950.76 is: 10,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.92 : 27,958.59 = 6,950.76 : x
  2. Step 2: Convert to fraction form
    18,643.92/27,958.59 = 6,950.76/x
  3. Step 3: Cross multiply
    18,643.92x = 27,958.59 × 6,950.76
  4. Step 4: Simplify right side
    18,643.92x = 194,333,449.03
  5. Step 5: Solve for x
    x = 194,333,449.03/18,643.92
  6. Step 6: Final answer
    x = 10,423.42

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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.