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Finding the Fourth Proportional to 20,527.57, 28,328.07 and 11,096.13

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Solution

The fourth proportional to 20,527.57, 28,328.07 and 11,096.13 is: 15,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.57 : 28,328.07 = 11,096.13 : x
  2. Step 2: Convert to fraction form
    20,527.57/28,328.07 = 11,096.13/x
  3. Step 3: Cross multiply
    20,527.57x = 28,328.07 × 11,096.13
  4. Step 4: Simplify right side
    20,527.57x = 314,331,805.73
  5. Step 5: Solve for x
    x = 314,331,805.73/20,527.57
  6. Step 6: Final answer
    x = 15,312.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.