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Finding the Fourth Proportional to 18,118.93, 24,980.97 and 11,734.24

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Solution

The fourth proportional to 18,118.93, 24,980.97 and 11,734.24 is: 16,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.93 : 24,980.97 = 11,734.24 : x
  2. Step 2: Convert to fraction form
    18,118.93/24,980.97 = 11,734.24/x
  3. Step 3: Cross multiply
    18,118.93x = 24,980.97 × 11,734.24
  4. Step 4: Simplify right side
    18,118.93x = 293,132,678.96
  5. Step 5: Solve for x
    x = 293,132,678.96/18,118.93
  6. Step 6: Final answer
    x = 16,178.26

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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.