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Finding the Fourth Proportional to 7,797.76, 11,700.28 and 4,513.61

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Solution

The fourth proportional to 7,797.76, 11,700.28 and 4,513.61 is: 6,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.76 : 11,700.28 = 4,513.61 : x
  2. Step 2: Convert to fraction form
    7,797.76/11,700.28 = 4,513.61/x
  3. Step 3: Cross multiply
    7,797.76x = 11,700.28 × 4,513.61
  4. Step 4: Simplify right side
    7,797.76x = 52,810,535.70
  5. Step 5: Solve for x
    x = 52,810,535.70/7,797.76
  6. Step 6: Final answer
    x = 6,772.53

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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.