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Finding the Fourth Proportional to 3,765.76, 5,648.16 and 2,374.90

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Solution

The fourth proportional to 3,765.76, 5,648.16 and 2,374.90 is: 3,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.76 : 5,648.16 = 2,374.90 : x
  2. Step 2: Convert to fraction form
    3,765.76/5,648.16 = 2,374.90/x
  3. Step 3: Cross multiply
    3,765.76x = 5,648.16 × 2,374.90
  4. Step 4: Simplify right side
    3,765.76x = 13,413,815.18
  5. Step 5: Solve for x
    x = 13,413,815.18/3,765.76
  6. Step 6: Final answer
    x = 3,562.05

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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.