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Finding the Fourth Proportional to 951.12, 1,426.06 and 625.50

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Solution

The fourth proportional to 951.12, 1,426.06 and 625.50 is: 937.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.12 : 1,426.06 = 625.50 : x
  2. Step 2: Convert to fraction form
    951.12/1,426.06 = 625.50/x
  3. Step 3: Cross multiply
    951.12x = 1,426.06 × 625.50
  4. Step 4: Simplify right side
    951.12x = 892,000.53
  5. Step 5: Solve for x
    x = 892,000.53/951.12
  6. Step 6: Final answer
    x = 937.84

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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.