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Finding the Fourth Proportional to 5,689.98, 8,529.77 and 4,818.09

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Solution

The fourth proportional to 5,689.98, 8,529.77 and 4,818.09 is: 7,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.98 : 8,529.77 = 4,818.09 : x
  2. Step 2: Convert to fraction form
    5,689.98/8,529.77 = 4,818.09/x
  3. Step 3: Cross multiply
    5,689.98x = 8,529.77 × 4,818.09
  4. Step 4: Simplify right side
    5,689.98x = 41,097,175.45
  5. Step 5: Solve for x
    x = 41,097,175.45/5,689.98
  6. Step 6: Final answer
    x = 7,222.73

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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.