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Finding the Fourth Proportional to 11,915.75, 17,873.75 and 3,595.83

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Solution

The fourth proportional to 11,915.75, 17,873.75 and 3,595.83 is: 5,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.75 : 17,873.75 = 3,595.83 : x
  2. Step 2: Convert to fraction form
    11,915.75/17,873.75 = 3,595.83/x
  3. Step 3: Cross multiply
    11,915.75x = 17,873.75 × 3,595.83
  4. Step 4: Simplify right side
    11,915.75x = 64,270,948.48
  5. Step 5: Solve for x
    x = 64,270,948.48/11,915.75
  6. Step 6: Final answer
    x = 5,393.78

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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.