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Finding the Fourth Proportional to 3,142.49, 4,714.47 and 951.08

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Solution

The fourth proportional to 3,142.49, 4,714.47 and 951.08 is: 1,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.49 : 4,714.47 = 951.08 : x
  2. Step 2: Convert to fraction form
    3,142.49/4,714.47 = 951.08/x
  3. Step 3: Cross multiply
    3,142.49x = 4,714.47 × 951.08
  4. Step 4: Simplify right side
    3,142.49x = 4,483,814.56
  5. Step 5: Solve for x
    x = 4,483,814.56/3,142.49
  6. Step 6: Final answer
    x = 1,426.84

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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.