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Finding the Fourth Proportional to 8,226.59, 11,352.60 and 4,689.59

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Solution

The fourth proportional to 8,226.59, 11,352.60 and 4,689.59 is: 6,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.59 : 11,352.60 = 4,689.59 : x
  2. Step 2: Convert to fraction form
    8,226.59/11,352.60 = 4,689.59/x
  3. Step 3: Cross multiply
    8,226.59x = 11,352.60 × 4,689.59
  4. Step 4: Simplify right side
    8,226.59x = 53,238,982.67
  5. Step 5: Solve for x
    x = 53,238,982.67/8,226.59
  6. Step 6: Final answer
    x = 6,471.58

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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.