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Finding the Fourth Proportional to 3,547.74, 5,321.64 and 1,599.42

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Solution

The fourth proportional to 3,547.74, 5,321.64 and 1,599.42 is: 2,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.74 : 5,321.64 = 1,599.42 : x
  2. Step 2: Convert to fraction form
    3,547.74/5,321.64 = 1,599.42/x
  3. Step 3: Cross multiply
    3,547.74x = 5,321.64 × 1,599.42
  4. Step 4: Simplify right side
    3,547.74x = 8,511,537.45
  5. Step 5: Solve for x
    x = 8,511,537.45/3,547.74
  6. Step 6: Final answer
    x = 2,399.14

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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.