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Finding the Fourth Proportional to 18,091.68, 24,967.92 and 10,135.44

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Solution

The fourth proportional to 18,091.68, 24,967.92 and 10,135.44 is: 13,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.68 : 24,967.92 = 10,135.44 : x
  2. Step 2: Convert to fraction form
    18,091.68/24,967.92 = 10,135.44/x
  3. Step 3: Cross multiply
    18,091.68x = 24,967.92 × 10,135.44
  4. Step 4: Simplify right side
    18,091.68x = 253,060,855.08
  5. Step 5: Solve for x
    x = 253,060,855.08/18,091.68
  6. Step 6: Final answer
    x = 13,987.69

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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.