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Finding the Fourth Proportional to 3,666.64, 5,500.62 and 1,475.53

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Solution

The fourth proportional to 3,666.64, 5,500.62 and 1,475.53 is: 2,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.64 : 5,500.62 = 1,475.53 : x
  2. Step 2: Convert to fraction form
    3,666.64/5,500.62 = 1,475.53/x
  3. Step 3: Cross multiply
    3,666.64x = 5,500.62 × 1,475.53
  4. Step 4: Simplify right side
    3,666.64x = 8,116,329.83
  5. Step 5: Solve for x
    x = 8,116,329.83/3,666.64
  6. Step 6: Final answer
    x = 2,213.56

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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.