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Finding the Fourth Proportional to 18,662.16, 27,992.04 and 10,346.16

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Solution

The fourth proportional to 18,662.16, 27,992.04 and 10,346.16 is: 15,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.16 : 27,992.04 = 10,346.16 : x
  2. Step 2: Convert to fraction form
    18,662.16/27,992.04 = 10,346.16/x
  3. Step 3: Cross multiply
    18,662.16x = 27,992.04 × 10,346.16
  4. Step 4: Simplify right side
    18,662.16x = 289,610,124.57
  5. Step 5: Solve for x
    x = 289,610,124.57/18,662.16
  6. Step 6: Final answer
    x = 15,518.57

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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.