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Finding the Fourth Proportional to 18,449.92, 27,693.71 and 13,504.87

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Solution

The fourth proportional to 18,449.92, 27,693.71 and 13,504.87 is: 20,271.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.92 : 27,693.71 = 13,504.87 : x
  2. Step 2: Convert to fraction form
    18,449.92/27,693.71 = 13,504.87/x
  3. Step 3: Cross multiply
    18,449.92x = 27,693.71 × 13,504.87
  4. Step 4: Simplify right side
    18,449.92x = 373,999,747.37
  5. Step 5: Solve for x
    x = 373,999,747.37/18,449.92
  6. Step 6: Final answer
    x = 20,271.08

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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.