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Finding the Fourth Proportional to 12,495.87, 17,247.24 and 7,193.79

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Solution

The fourth proportional to 12,495.87, 17,247.24 and 7,193.79 is: 9,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.87 : 17,247.24 = 7,193.79 : x
  2. Step 2: Convert to fraction form
    12,495.87/17,247.24 = 7,193.79/x
  3. Step 3: Cross multiply
    12,495.87x = 17,247.24 × 7,193.79
  4. Step 4: Simplify right side
    12,495.87x = 124,073,022.64
  5. Step 5: Solve for x
    x = 124,073,022.64/12,495.87
  6. Step 6: Final answer
    x = 9,929.12

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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.