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Finding the Fourth Proportional to 13,003.55, 17,944.85 and 7,035.22

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Solution

The fourth proportional to 13,003.55, 17,944.85 and 7,035.22 is: 9,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.55 : 17,944.85 = 7,035.22 : x
  2. Step 2: Convert to fraction form
    13,003.55/17,944.85 = 7,035.22/x
  3. Step 3: Cross multiply
    13,003.55x = 17,944.85 × 7,035.22
  4. Step 4: Simplify right side
    13,003.55x = 126,245,842.72
  5. Step 5: Solve for x
    x = 126,245,842.72/13,003.55
  6. Step 6: Final answer
    x = 9,708.57

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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.