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Finding the Fourth Proportional to 11,076.90, 15,286.17 and 6,602.90

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Solution

The fourth proportional to 11,076.90, 15,286.17 and 6,602.90 is: 9,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.90 : 15,286.17 = 6,602.90 : x
  2. Step 2: Convert to fraction form
    11,076.90/15,286.17 = 6,602.90/x
  3. Step 3: Cross multiply
    11,076.90x = 15,286.17 × 6,602.90
  4. Step 4: Simplify right side
    11,076.90x = 100,933,051.89
  5. Step 5: Solve for x
    x = 100,933,051.89/11,076.90
  6. Step 6: Final answer
    x = 9,112.03

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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.