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Finding the Fourth Proportional to 3,710.25, 5,565.42 and 974.25

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Solution

The fourth proportional to 3,710.25, 5,565.42 and 974.25 is: 1,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.25 : 5,565.42 = 974.25 : x
  2. Step 2: Convert to fraction form
    3,710.25/5,565.42 = 974.25/x
  3. Step 3: Cross multiply
    3,710.25x = 5,565.42 × 974.25
  4. Step 4: Simplify right side
    3,710.25x = 5,422,110.44
  5. Step 5: Solve for x
    x = 5,422,110.44/3,710.25
  6. Step 6: Final answer
    x = 1,461.39

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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.