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Finding the Fourth Proportional to 3,148.02, 4,722.01 and 956.74

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Solution

The fourth proportional to 3,148.02, 4,722.01 and 956.74 is: 1,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.02 : 4,722.01 = 956.74 : x
  2. Step 2: Convert to fraction form
    3,148.02/4,722.01 = 956.74/x
  3. Step 3: Cross multiply
    3,148.02x = 4,722.01 × 956.74
  4. Step 4: Simplify right side
    3,148.02x = 4,517,735.85
  5. Step 5: Solve for x
    x = 4,517,735.85/3,148.02
  6. Step 6: Final answer
    x = 1,435.10

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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.