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Finding the Fourth Proportional to 17,690.65, 24,402.95 and 11,055.13

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Solution

The fourth proportional to 17,690.65, 24,402.95 and 11,055.13 is: 15,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.65 : 24,402.95 = 11,055.13 : x
  2. Step 2: Convert to fraction form
    17,690.65/24,402.95 = 11,055.13/x
  3. Step 3: Cross multiply
    17,690.65x = 24,402.95 × 11,055.13
  4. Step 4: Simplify right side
    17,690.65x = 269,777,662.62
  5. Step 5: Solve for x
    x = 269,777,662.62/17,690.65
  6. Step 6: Final answer
    x = 15,249.74

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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.