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Finding the Fourth Proportional to 15,096.31, 20,835.39 and 8,808.67

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Solution

The fourth proportional to 15,096.31, 20,835.39 and 8,808.67 is: 12,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,096.31 : 20,835.39 = 8,808.67 : x
  2. Step 2: Convert to fraction form
    15,096.31/20,835.39 = 8,808.67/x
  3. Step 3: Cross multiply
    15,096.31x = 20,835.39 × 8,808.67
  4. Step 4: Simplify right side
    15,096.31x = 183,532,074.83
  5. Step 5: Solve for x
    x = 183,532,074.83/15,096.31
  6. Step 6: Final answer
    x = 12,157.41

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1.5x scale

Why These Related Problems?

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