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Finding the Fourth Proportional to 1,517.76, 2,094.35 and 854.60

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Solution

The fourth proportional to 1,517.76, 2,094.35 and 854.60 is: 1,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.76 : 2,094.35 = 854.60 : x
  2. Step 2: Convert to fraction form
    1,517.76/2,094.35 = 854.60/x
  3. Step 3: Cross multiply
    1,517.76x = 2,094.35 × 854.60
  4. Step 4: Simplify right side
    1,517.76x = 1,789,816.77
  5. Step 5: Solve for x
    x = 1,789,816.77/1,517.76
  6. Step 6: Final answer
    x = 1,179.25

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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.