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Finding the Fourth Proportional to 8,797.79, 12,137.57 and 5,021.17

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Solution

The fourth proportional to 8,797.79, 12,137.57 and 5,021.17 is: 6,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.79 : 12,137.57 = 5,021.17 : x
  2. Step 2: Convert to fraction form
    8,797.79/12,137.57 = 5,021.17/x
  3. Step 3: Cross multiply
    8,797.79x = 12,137.57 × 5,021.17
  4. Step 4: Simplify right side
    8,797.79x = 60,944,754.22
  5. Step 5: Solve for x
    x = 60,944,754.22/8,797.79
  6. Step 6: Final answer
    x = 6,927.28

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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.