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Finding the Fourth Proportional to 7,292.70, 10,912.05 and 5,348.70

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Solution

The fourth proportional to 7,292.70, 10,912.05 and 5,348.70 is: 8,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.70 : 10,912.05 = 5,348.70 : x
  2. Step 2: Convert to fraction form
    7,292.70/10,912.05 = 5,348.70/x
  3. Step 3: Cross multiply
    7,292.70x = 10,912.05 × 5,348.70
  4. Step 4: Simplify right side
    7,292.70x = 58,365,281.84
  5. Step 5: Solve for x
    x = 58,365,281.84/7,292.70
  6. Step 6: Final answer
    x = 8,003.25

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1.5x scale

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.