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Finding the Fourth Proportional to 3,967.65, 5,953.50 and 1,629.45

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Solution

The fourth proportional to 3,967.65, 5,953.50 and 1,629.45 is: 2,445.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.65 : 5,953.50 = 1,629.45 : x
  2. Step 2: Convert to fraction form
    3,967.65/5,953.50 = 1,629.45/x
  3. Step 3: Cross multiply
    3,967.65x = 5,953.50 × 1,629.45
  4. Step 4: Simplify right side
    3,967.65x = 9,700,930.58
  5. Step 5: Solve for x
    x = 9,700,930.58/3,967.65
  6. Step 6: Final answer
    x = 2,445.01

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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.