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Finding the Fourth Proportional to 11,017.80, 15,204.64 and 5,982.10

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Solution

The fourth proportional to 11,017.80, 15,204.64 and 5,982.10 is: 8,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.80 : 15,204.64 = 5,982.10 : x
  2. Step 2: Convert to fraction form
    11,017.80/15,204.64 = 5,982.10/x
  3. Step 3: Cross multiply
    11,017.80x = 15,204.64 × 5,982.10
  4. Step 4: Simplify right side
    11,017.80x = 90,955,676.94
  5. Step 5: Solve for x
    x = 90,955,676.94/11,017.80
  6. Step 6: Final answer
    x = 8,255.34

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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.