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Finding the Fourth Proportional to 13,604.74, 18,773.04 and 7,635.04

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Solution

The fourth proportional to 13,604.74, 18,773.04 and 7,635.04 is: 10,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.74 : 18,773.04 = 7,635.04 : x
  2. Step 2: Convert to fraction form
    13,604.74/18,773.04 = 7,635.04/x
  3. Step 3: Cross multiply
    13,604.74x = 18,773.04 × 7,635.04
  4. Step 4: Simplify right side
    13,604.74x = 143,332,911.32
  5. Step 5: Solve for x
    x = 143,332,911.32/13,604.74
  6. Step 6: Final answer
    x = 10,535.51

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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.