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Finding the Fourth Proportional to 7,296.70, 10,945.05 and 4,963.90

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Solution

The fourth proportional to 7,296.70, 10,945.05 and 4,963.90 is: 7,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.70 : 10,945.05 = 4,963.90 : x
  2. Step 2: Convert to fraction form
    7,296.70/10,945.05 = 4,963.90/x
  3. Step 3: Cross multiply
    7,296.70x = 10,945.05 × 4,963.90
  4. Step 4: Simplify right side
    7,296.70x = 54,330,133.70
  5. Step 5: Solve for x
    x = 54,330,133.70/7,296.70
  6. Step 6: Final answer
    x = 7,445.85

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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.