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Finding the Fourth Proportional to 6,076.64, 9,115.08 and 1,917.32

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Solution

The fourth proportional to 6,076.64, 9,115.08 and 1,917.32 is: 2,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,076.64 : 9,115.08 = 1,917.32 : x
  2. Step 2: Convert to fraction form
    6,076.64/9,115.08 = 1,917.32/x
  3. Step 3: Cross multiply
    6,076.64x = 9,115.08 × 1,917.32
  4. Step 4: Simplify right side
    6,076.64x = 17,476,525.19
  5. Step 5: Solve for x
    x = 17,476,525.19/6,076.64
  6. Step 6: Final answer
    x = 2,876.02

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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.