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Finding the Fourth Proportional to 8,609.79, 12,898.22 and 5,822.77

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Solution

The fourth proportional to 8,609.79, 12,898.22 and 5,822.77 is: 8,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.79 : 12,898.22 = 5,822.77 : x
  2. Step 2: Convert to fraction form
    8,609.79/12,898.22 = 5,822.77/x
  3. Step 3: Cross multiply
    8,609.79x = 12,898.22 × 5,822.77
  4. Step 4: Simplify right side
    8,609.79x = 75,103,339.36
  5. Step 5: Solve for x
    x = 75,103,339.36/8,609.79
  6. Step 6: Final answer
    x = 8,723.02

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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.