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Finding the Fourth Proportional to 7,971.99, 11,957.99 and 3,799.32

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Solution

The fourth proportional to 7,971.99, 11,957.99 and 3,799.32 is: 5,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.99 : 11,957.99 = 3,799.32 : x
  2. Step 2: Convert to fraction form
    7,971.99/11,957.99 = 3,799.32/x
  3. Step 3: Cross multiply
    7,971.99x = 11,957.99 × 3,799.32
  4. Step 4: Simplify right side
    7,971.99x = 45,432,211.57
  5. Step 5: Solve for x
    x = 45,432,211.57/7,971.99
  6. Step 6: Final answer
    x = 5,698.98

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Similar ratio
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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.