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Finding the Fourth Proportional to 8,797.40, 13,176.90 and 6,834.20

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Solution

The fourth proportional to 8,797.40, 13,176.90 and 6,834.20 is: 10,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.40 : 13,176.90 = 6,834.20 : x
  2. Step 2: Convert to fraction form
    8,797.40/13,176.90 = 6,834.20/x
  3. Step 3: Cross multiply
    8,797.40x = 13,176.90 × 6,834.20
  4. Step 4: Simplify right side
    8,797.40x = 90,053,569.98
  5. Step 5: Solve for x
    x = 90,053,569.98/8,797.40
  6. Step 6: Final answer
    x = 10,236.38

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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.