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Finding the Fourth Proportional to 5,341.52, 7,373.64 and 3,218

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Solution

The fourth proportional to 5,341.52, 7,373.64 and 3,218 is: 4,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,341.52 : 7,373.64 = 3,218 : x
  2. Step 2: Convert to fraction form
    5,341.52/7,373.64 = 3,218/x
  3. Step 3: Cross multiply
    5,341.52x = 7,373.64 × 3,218
  4. Step 4: Simplify right side
    5,341.52x = 23,728,373.52
  5. Step 5: Solve for x
    x = 23,728,373.52/5,341.52
  6. Step 6: Final answer
    x = 4,442.25

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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.