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Finding the Fourth Proportional to 11,788.64, 17,670.60 and 4,773.63

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Solution

The fourth proportional to 11,788.64, 17,670.60 and 4,773.63 is: 7,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.64 : 17,670.60 = 4,773.63 : x
  2. Step 2: Convert to fraction form
    11,788.64/17,670.60 = 4,773.63/x
  3. Step 3: Cross multiply
    11,788.64x = 17,670.60 × 4,773.63
  4. Step 4: Simplify right side
    11,788.64x = 84,352,882.41
  5. Step 5: Solve for x
    x = 84,352,882.41/11,788.64
  6. Step 6: Final answer
    x = 7,155.44

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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.