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Finding the Fourth Proportional to 7,820.28, 10,793.88 and 4,834.31

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Solution

The fourth proportional to 7,820.28, 10,793.88 and 4,834.31 is: 6,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.28 : 10,793.88 = 4,834.31 : x
  2. Step 2: Convert to fraction form
    7,820.28/10,793.88 = 4,834.31/x
  3. Step 3: Cross multiply
    7,820.28x = 10,793.88 × 4,834.31
  4. Step 4: Simplify right side
    7,820.28x = 52,180,989.01
  5. Step 5: Solve for x
    x = 52,180,989.01/7,820.28
  6. Step 6: Final answer
    x = 6,672.52

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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.