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Finding the Fourth Proportional to 3,357.60, 5,036.48 and 892.48

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Solution

The fourth proportional to 3,357.60, 5,036.48 and 892.48 is: 1,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.60 : 5,036.48 = 892.48 : x
  2. Step 2: Convert to fraction form
    3,357.60/5,036.48 = 892.48/x
  3. Step 3: Cross multiply
    3,357.60x = 5,036.48 × 892.48
  4. Step 4: Simplify right side
    3,357.60x = 4,494,957.67
  5. Step 5: Solve for x
    x = 4,494,957.67/3,357.60
  6. Step 6: Final answer
    x = 1,338.74

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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.