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Finding the Fourth Proportional to 7,462.60, 11,193.60 and 1,915.96

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Solution

The fourth proportional to 7,462.60, 11,193.60 and 1,915.96 is: 2,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,462.60 : 11,193.60 = 1,915.96 : x
  2. Step 2: Convert to fraction form
    7,462.60/11,193.60 = 1,915.96/x
  3. Step 3: Cross multiply
    7,462.60x = 11,193.60 × 1,915.96
  4. Step 4: Simplify right side
    7,462.60x = 21,446,489.86
  5. Step 5: Solve for x
    x = 21,446,489.86/7,462.60
  6. Step 6: Final answer
    x = 2,873.86

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1.5x scale

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.