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Finding the Fourth Proportional to 17,938.08, 24,754.88 and 9,981.05

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Solution

The fourth proportional to 17,938.08, 24,754.88 and 9,981.05 is: 13,774.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938.08 : 24,754.88 = 9,981.05 : x
  2. Step 2: Convert to fraction form
    17,938.08/24,754.88 = 9,981.05/x
  3. Step 3: Cross multiply
    17,938.08x = 24,754.88 × 9,981.05
  4. Step 4: Simplify right side
    17,938.08x = 247,079,596.20
  5. Step 5: Solve for x
    x = 247,079,596.20/17,938.08
  6. Step 6: Final answer
    x = 13,774.03

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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.