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Finding the Fourth Proportional to 11,658.48, 17,479.44 and 3,758.55

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Solution

The fourth proportional to 11,658.48, 17,479.44 and 3,758.55 is: 5,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658.48 : 17,479.44 = 3,758.55 : x
  2. Step 2: Convert to fraction form
    11,658.48/17,479.44 = 3,758.55/x
  3. Step 3: Cross multiply
    11,658.48x = 17,479.44 × 3,758.55
  4. Step 4: Simplify right side
    11,658.48x = 65,697,349.21
  5. Step 5: Solve for x
    x = 65,697,349.21/11,658.48
  6. Step 6: Final answer
    x = 5,635.16

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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.