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Finding the Fourth Proportional to 5,651.10, 8,476.65 and 4,815.90

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Solution

The fourth proportional to 5,651.10, 8,476.65 and 4,815.90 is: 7,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.10 : 8,476.65 = 4,815.90 : x
  2. Step 2: Convert to fraction form
    5,651.10/8,476.65 = 4,815.90/x
  3. Step 3: Cross multiply
    5,651.10x = 8,476.65 × 4,815.90
  4. Step 4: Simplify right side
    5,651.10x = 40,822,698.74
  5. Step 5: Solve for x
    x = 40,822,698.74/5,651.10
  6. Step 6: Final answer
    x = 7,223.85

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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.