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Finding the Fourth Proportional to 2,442.77, 3,664.25 and 711.39

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Solution

The fourth proportional to 2,442.77, 3,664.25 and 711.39 is: 1,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.77 : 3,664.25 = 711.39 : x
  2. Step 2: Convert to fraction form
    2,442.77/3,664.25 = 711.39/x
  3. Step 3: Cross multiply
    2,442.77x = 3,664.25 × 711.39
  4. Step 4: Simplify right side
    2,442.77x = 2,606,710.81
  5. Step 5: Solve for x
    x = 2,606,710.81/2,442.77
  6. Step 6: Final answer
    x = 1,067.11

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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.