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Finding the Fourth Proportional to 8,797.20, 12,155.48 and 6,923.64

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Solution

The fourth proportional to 8,797.20, 12,155.48 and 6,923.64 is: 9,566.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.20 : 12,155.48 = 6,923.64 : x
  2. Step 2: Convert to fraction form
    8,797.20/12,155.48 = 6,923.64/x
  3. Step 3: Cross multiply
    8,797.20x = 12,155.48 × 6,923.64
  4. Step 4: Simplify right side
    8,797.20x = 84,160,167.55
  5. Step 5: Solve for x
    x = 84,160,167.55/8,797.20
  6. Step 6: Final answer
    x = 9,566.70

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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.