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Finding the Fourth Proportional to 17,670.60, 26,505.90 and 11,449.80

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Solution

The fourth proportional to 17,670.60, 26,505.90 and 11,449.80 is: 17,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,670.60 : 26,505.90 = 11,449.80 : x
  2. Step 2: Convert to fraction form
    17,670.60/26,505.90 = 11,449.80/x
  3. Step 3: Cross multiply
    17,670.60x = 26,505.90 × 11,449.80
  4. Step 4: Simplify right side
    17,670.60x = 303,487,253.82
  5. Step 5: Solve for x
    x = 303,487,253.82/17,670.60
  6. Step 6: Final answer
    x = 17,174.70

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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.