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Finding the Fourth Proportional to 12,473.59, 17,213.73 and 7,440.73

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Solution

The fourth proportional to 12,473.59, 17,213.73 and 7,440.73 is: 10,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.59 : 17,213.73 = 7,440.73 : x
  2. Step 2: Convert to fraction form
    12,473.59/17,213.73 = 7,440.73/x
  3. Step 3: Cross multiply
    12,473.59x = 17,213.73 × 7,440.73
  4. Step 4: Simplify right side
    12,473.59x = 128,082,717.22
  5. Step 5: Solve for x
    x = 128,082,717.22/12,473.59
  6. Step 6: Final answer
    x = 10,268.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.