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Finding the Fourth Proportional to 15,318.01, 22,978.43 and 5,958.74

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Solution

The fourth proportional to 15,318.01, 22,978.43 and 5,958.74 is: 8,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.01 : 22,978.43 = 5,958.74 : x
  2. Step 2: Convert to fraction form
    15,318.01/22,978.43 = 5,958.74/x
  3. Step 3: Cross multiply
    15,318.01x = 22,978.43 × 5,958.74
  4. Step 4: Simplify right side
    15,318.01x = 136,922,504.88
  5. Step 5: Solve for x
    x = 136,922,504.88/15,318.01
  6. Step 6: Final answer
    x = 8,938.66

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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.