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Finding the Fourth Proportional to 71,969.51, 99,322.80 and 41,754.85

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Solution

The fourth proportional to 71,969.51, 99,322.80 and 41,754.85 is: 57,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,969.51 : 99,322.80 = 41,754.85 : x
  2. Step 2: Convert to fraction form
    71,969.51/99,322.80 = 41,754.85/x
  3. Step 3: Cross multiply
    71,969.51x = 99,322.80 × 41,754.85
  4. Step 4: Simplify right side
    71,969.51x = 4,147,207,910.19
  5. Step 5: Solve for x
    x = 4,147,207,910.19/71,969.51
  6. Step 6: Final answer
    x = 57,624.51

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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.