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Finding the Fourth Proportional to 11,658.56, 17,482.24 and 4,257.92

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Solution

The fourth proportional to 11,658.56, 17,482.24 and 4,257.92 is: 6,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658.56 : 17,482.24 = 4,257.92 : x
  2. Step 2: Convert to fraction form
    11,658.56/17,482.24 = 4,257.92/x
  3. Step 3: Cross multiply
    11,658.56x = 17,482.24 × 4,257.92
  4. Step 4: Simplify right side
    11,658.56x = 74,437,979.34
  5. Step 5: Solve for x
    x = 74,437,979.34/11,658.56
  6. Step 6: Final answer
    x = 6,384.83

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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.