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Finding the Fourth Proportional to 18,486.92, 25,514.91 and 14,538.02

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Solution

The fourth proportional to 18,486.92, 25,514.91 and 14,538.02 is: 20,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.92 : 25,514.91 = 14,538.02 : x
  2. Step 2: Convert to fraction form
    18,486.92/25,514.91 = 14,538.02/x
  3. Step 3: Cross multiply
    18,486.92x = 25,514.91 × 14,538.02
  4. Step 4: Simplify right side
    18,486.92x = 370,936,271.88
  5. Step 5: Solve for x
    x = 370,936,271.88/18,486.92
  6. Step 6: Final answer
    x = 20,064.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.