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Finding the Fourth Proportional to 8,482.17, 12,711.39 and 7,226.22

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Solution

The fourth proportional to 8,482.17, 12,711.39 and 7,226.22 is: 10,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.17 : 12,711.39 = 7,226.22 : x
  2. Step 2: Convert to fraction form
    8,482.17/12,711.39 = 7,226.22/x
  3. Step 3: Cross multiply
    8,482.17x = 12,711.39 × 7,226.22
  4. Step 4: Simplify right side
    8,482.17x = 91,855,280.08
  5. Step 5: Solve for x
    x = 91,855,280.08/8,482.17
  6. Step 6: Final answer
    x = 10,829.22

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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.