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Finding the Fourth Proportional to 9,658.80, 14,490.18 and 5,500.80

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Solution

The fourth proportional to 9,658.80, 14,490.18 and 5,500.80 is: 8,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658.80 : 14,490.18 = 5,500.80 : x
  2. Step 2: Convert to fraction form
    9,658.80/14,490.18 = 5,500.80/x
  3. Step 3: Cross multiply
    9,658.80x = 14,490.18 × 5,500.80
  4. Step 4: Simplify right side
    9,658.80x = 79,707,582.14
  5. Step 5: Solve for x
    x = 79,707,582.14/9,658.80
  6. Step 6: Final answer
    x = 8,252.33

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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.