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Finding the Fourth Proportional to 25,989.91, 38,961.43 and 9,346.03

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Solution

The fourth proportional to 25,989.91, 38,961.43 and 9,346.03 is: 14,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.91 : 38,961.43 = 9,346.03 : x
  2. Step 2: Convert to fraction form
    25,989.91/38,961.43 = 9,346.03/x
  3. Step 3: Cross multiply
    25,989.91x = 38,961.43 × 9,346.03
  4. Step 4: Simplify right side
    25,989.91x = 364,134,693.62
  5. Step 5: Solve for x
    x = 364,134,693.62/25,989.91
  6. Step 6: Final answer
    x = 14,010.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.