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Finding the Fourth Proportional to 5,563.88, 7,678.16 and 3,468

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Solution

The fourth proportional to 5,563.88, 7,678.16 and 3,468 is: 4,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,563.88 : 7,678.16 = 3,468 : x
  2. Step 2: Convert to fraction form
    5,563.88/7,678.16 = 3,468/x
  3. Step 3: Cross multiply
    5,563.88x = 7,678.16 × 3,468
  4. Step 4: Simplify right side
    5,563.88x = 26,627,841.54
  5. Step 5: Solve for x
    x = 26,627,841.54/5,563.88
  6. Step 6: Final answer
    x = 4,785.84

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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.