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Finding the Fourth Proportional to 6,720.80, 10,081.20 and 6,016.10

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Solution

The fourth proportional to 6,720.80, 10,081.20 and 6,016.10 is: 9,024.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.80 : 10,081.20 = 6,016.10 : x
  2. Step 2: Convert to fraction form
    6,720.80/10,081.20 = 6,016.10/x
  3. Step 3: Cross multiply
    6,720.80x = 10,081.20 × 6,016.10
  4. Step 4: Simplify right side
    6,720.80x = 60,649,507.32
  5. Step 5: Solve for x
    x = 60,649,507.32/6,720.80
  6. Step 6: Final answer
    x = 9,024.15

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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.