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Finding the Fourth Proportional to 3,141.42, 4,712.35 and 950.32

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Solution

The fourth proportional to 3,141.42, 4,712.35 and 950.32 is: 1,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.42 : 4,712.35 = 950.32 : x
  2. Step 2: Convert to fraction form
    3,141.42/4,712.35 = 950.32/x
  3. Step 3: Cross multiply
    3,141.42x = 4,712.35 × 950.32
  4. Step 4: Simplify right side
    3,141.42x = 4,478,219.24
  5. Step 5: Solve for x
    x = 4,478,219.24/3,141.42
  6. Step 6: Final answer
    x = 1,425.54

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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.