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Finding the Fourth Proportional to 18,008, 24,853.92 and 10,556

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Solution

The fourth proportional to 18,008, 24,853.92 and 10,556 is: 14,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008 : 24,853.92 = 10,556 : x
  2. Step 2: Convert to fraction form
    18,008/24,853.92 = 10,556/x
  3. Step 3: Cross multiply
    18,008x = 24,853.92 × 10,556
  4. Step 4: Simplify right side
    18,008x = 262,357,979.52
  5. Step 5: Solve for x
    x = 262,357,979.52/18,008
  6. Step 6: Final answer
    x = 14,568.97

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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.