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Finding the Fourth Proportional to 3,764.32, 5,646.42 and 1,167.28

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Solution

The fourth proportional to 3,764.32, 5,646.42 and 1,167.28 is: 1,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.32 : 5,646.42 = 1,167.28 : x
  2. Step 2: Convert to fraction form
    3,764.32/5,646.42 = 1,167.28/x
  3. Step 3: Cross multiply
    3,764.32x = 5,646.42 × 1,167.28
  4. Step 4: Simplify right side
    3,764.32x = 6,590,953.14
  5. Step 5: Solve for x
    x = 6,590,953.14/3,764.32
  6. Step 6: Final answer
    x = 1,750.90

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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.