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Finding the Fourth Proportional to 25,991.44, 38,991 and 7,521.04

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Solution

The fourth proportional to 25,991.44, 38,991 and 7,521.04 is: 11,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.44 : 38,991 = 7,521.04 : x
  2. Step 2: Convert to fraction form
    25,991.44/38,991 = 7,521.04/x
  3. Step 3: Cross multiply
    25,991.44x = 38,991 × 7,521.04
  4. Step 4: Simplify right side
    25,991.44x = 293,252,870.64
  5. Step 5: Solve for x
    x = 293,252,870.64/25,991.44
  6. Step 6: Final answer
    x = 11,282.67

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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.