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Finding the Fourth Proportional to 1,516.59, 2,092.64 and 887.22

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Solution

The fourth proportional to 1,516.59, 2,092.64 and 887.22 is: 1,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.59 : 2,092.64 = 887.22 : x
  2. Step 2: Convert to fraction form
    1,516.59/2,092.64 = 887.22/x
  3. Step 3: Cross multiply
    1,516.59x = 2,092.64 × 887.22
  4. Step 4: Simplify right side
    1,516.59x = 1,856,627.62
  5. Step 5: Solve for x
    x = 1,856,627.62/1,516.59
  6. Step 6: Final answer
    x = 1,224.21

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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.