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Finding the Fourth Proportional to 8,951.75, 12,352.67 and 4,918.46

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Solution

The fourth proportional to 8,951.75, 12,352.67 and 4,918.46 is: 6,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.75 : 12,352.67 = 4,918.46 : x
  2. Step 2: Convert to fraction form
    8,951.75/12,352.67 = 4,918.46/x
  3. Step 3: Cross multiply
    8,951.75x = 12,352.67 × 4,918.46
  4. Step 4: Simplify right side
    8,951.75x = 60,756,026.93
  5. Step 5: Solve for x
    x = 60,756,026.93/8,951.75
  6. Step 6: Final answer
    x = 6,787.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.