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Finding the Fourth Proportional to 17,915.60, 24,723.62 and 9,958.56

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Solution

The fourth proportional to 17,915.60, 24,723.62 and 9,958.56 is: 13,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.60 : 24,723.62 = 9,958.56 : x
  2. Step 2: Convert to fraction form
    17,915.60/24,723.62 = 9,958.56/x
  3. Step 3: Cross multiply
    17,915.60x = 24,723.62 × 9,958.56
  4. Step 4: Simplify right side
    17,915.60x = 246,211,603.39
  5. Step 5: Solve for x
    x = 246,211,603.39/17,915.60
  6. Step 6: Final answer
    x = 13,742.86

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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.