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Finding the Fourth Proportional to 5,562.58, 7,676.64 and 3,172.62

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Solution

The fourth proportional to 5,562.58, 7,676.64 and 3,172.62 is: 4,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,562.58 : 7,676.64 = 3,172.62 : x
  2. Step 2: Convert to fraction form
    5,562.58/7,676.64 = 3,172.62/x
  3. Step 3: Cross multiply
    5,562.58x = 7,676.64 × 3,172.62
  4. Step 4: Simplify right side
    5,562.58x = 24,355,061.60
  5. Step 5: Solve for x
    x = 24,355,061.60/5,562.58
  6. Step 6: Final answer
    x = 4,378.38

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1.5x scale

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.