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Finding the Fourth Proportional to 68,992.13, 103,468.17 and 26,862.80

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Solution

The fourth proportional to 68,992.13, 103,468.17 and 26,862.80 is: 40,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.13 : 103,468.17 = 26,862.80 : x
  2. Step 2: Convert to fraction form
    68,992.13/103,468.17 = 26,862.80/x
  3. Step 3: Cross multiply
    68,992.13x = 103,468.17 × 26,862.80
  4. Step 4: Simplify right side
    68,992.13x = 2,779,444,757.08
  5. Step 5: Solve for x
    x = 2,779,444,757.08/68,992.13
  6. Step 6: Final answer
    x = 40,286.40

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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.