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Finding the Fourth Proportional to 7,982.01, 11,016.05 and 4,838.13

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Solution

The fourth proportional to 7,982.01, 11,016.05 and 4,838.13 is: 6,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.01 : 11,016.05 = 4,838.13 : x
  2. Step 2: Convert to fraction form
    7,982.01/11,016.05 = 4,838.13/x
  3. Step 3: Cross multiply
    7,982.01x = 11,016.05 × 4,838.13
  4. Step 4: Simplify right side
    7,982.01x = 53,297,057.80
  5. Step 5: Solve for x
    x = 53,297,057.80/7,982.01
  6. Step 6: Final answer
    x = 6,677.15

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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.