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Finding the Fourth Proportional to 13,652.85, 20,480.22 and 5,330.10

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Solution

The fourth proportional to 13,652.85, 20,480.22 and 5,330.10 is: 7,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.85 : 20,480.22 = 5,330.10 : x
  2. Step 2: Convert to fraction form
    13,652.85/20,480.22 = 5,330.10/x
  3. Step 3: Cross multiply
    13,652.85x = 20,480.22 × 5,330.10
  4. Step 4: Simplify right side
    13,652.85x = 109,161,620.62
  5. Step 5: Solve for x
    x = 109,161,620.62/13,652.85
  6. Step 6: Final answer
    x = 7,995.52

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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.