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Finding the Fourth Proportional to 5,655.56, 7,804.28 and 3,137.58

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Solution

The fourth proportional to 5,655.56, 7,804.28 and 3,137.58 is: 4,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.56 : 7,804.28 = 3,137.58 : x
  2. Step 2: Convert to fraction form
    5,655.56/7,804.28 = 3,137.58/x
  3. Step 3: Cross multiply
    5,655.56x = 7,804.28 × 3,137.58
  4. Step 4: Simplify right side
    5,655.56x = 24,486,537.15
  5. Step 5: Solve for x
    x = 24,486,537.15/5,655.56
  6. Step 6: Final answer
    x = 4,329.64

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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.