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Finding the Fourth Proportional to 15,096.08, 20,832.98 and 8,381.99

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Solution

The fourth proportional to 15,096.08, 20,832.98 and 8,381.99 is: 11,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,096.08 : 20,832.98 = 8,381.99 : x
  2. Step 2: Convert to fraction form
    15,096.08/20,832.98 = 8,381.99/x
  3. Step 3: Cross multiply
    15,096.08x = 20,832.98 × 8,381.99
  4. Step 4: Simplify right side
    15,096.08x = 174,621,683.96
  5. Step 5: Solve for x
    x = 174,621,683.96/15,096.08
  6. Step 6: Final answer
    x = 11,567.36

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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.