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Finding the Fourth Proportional to 18,660.24, 27,952.86 and 9,271.86

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Solution

The fourth proportional to 18,660.24, 27,952.86 and 9,271.86 is: 13,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.24 : 27,952.86 = 9,271.86 : x
  2. Step 2: Convert to fraction form
    18,660.24/27,952.86 = 9,271.86/x
  3. Step 3: Cross multiply
    18,660.24x = 27,952.86 × 9,271.86
  4. Step 4: Simplify right side
    18,660.24x = 259,175,004.52
  5. Step 5: Solve for x
    x = 259,175,004.52/18,660.24
  6. Step 6: Final answer
    x = 13,889.16

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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.