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Finding the Fourth Proportional to 3,162.34, 4,743.51 and 971.04

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Solution

The fourth proportional to 3,162.34, 4,743.51 and 971.04 is: 1,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.34 : 4,743.51 = 971.04 : x
  2. Step 2: Convert to fraction form
    3,162.34/4,743.51 = 971.04/x
  3. Step 3: Cross multiply
    3,162.34x = 4,743.51 × 971.04
  4. Step 4: Simplify right side
    3,162.34x = 4,606,130.88
  5. Step 5: Solve for x
    x = 4,606,130.88/3,162.34
  6. Step 6: Final answer
    x = 1,456.56

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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.