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Finding the Fourth Proportional to 11,855.64, 17,783.40 and 4,835.62

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Solution

The fourth proportional to 11,855.64, 17,783.40 and 4,835.62 is: 7,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.64 : 17,783.40 = 4,835.62 : x
  2. Step 2: Convert to fraction form
    11,855.64/17,783.40 = 4,835.62/x
  3. Step 3: Cross multiply
    11,855.64x = 17,783.40 × 4,835.62
  4. Step 4: Simplify right side
    11,855.64x = 85,993,764.71
  5. Step 5: Solve for x
    x = 85,993,764.71/11,855.64
  6. Step 6: Final answer
    x = 7,253.41

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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.