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Finding the Fourth Proportional to 3,442.99, 5,164.54 and 845.93

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Solution

The fourth proportional to 3,442.99, 5,164.54 and 845.93 is: 1,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.99 : 5,164.54 = 845.93 : x
  2. Step 2: Convert to fraction form
    3,442.99/5,164.54 = 845.93/x
  3. Step 3: Cross multiply
    3,442.99x = 5,164.54 × 845.93
  4. Step 4: Simplify right side
    3,442.99x = 4,368,839.32
  5. Step 5: Solve for x
    x = 4,368,839.32/3,442.99
  6. Step 6: Final answer
    x = 1,268.91

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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.