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Finding the Fourth Proportional to 1,159.59, 1,735.62 and 851.37

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Solution

The fourth proportional to 1,159.59, 1,735.62 and 851.37 is: 1,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.59 : 1,735.62 = 851.37 : x
  2. Step 2: Convert to fraction form
    1,159.59/1,735.62 = 851.37/x
  3. Step 3: Cross multiply
    1,159.59x = 1,735.62 × 851.37
  4. Step 4: Simplify right side
    1,159.59x = 1,477,651.61
  5. Step 5: Solve for x
    x = 1,477,651.61/1,159.59
  6. Step 6: Final answer
    x = 1,274.29

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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.