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Finding the Fourth Proportional to 66,296.29, 91,487.12 and 36,080.97

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Solution

The fourth proportional to 66,296.29, 91,487.12 and 36,080.97 is: 49,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,296.29 : 91,487.12 = 36,080.97 : x
  2. Step 2: Convert to fraction form
    66,296.29/91,487.12 = 36,080.97/x
  3. Step 3: Cross multiply
    66,296.29x = 91,487.12 × 36,080.97
  4. Step 4: Simplify right side
    66,296.29x = 3,300,943,574.67
  5. Step 5: Solve for x
    x = 3,300,943,574.67/66,296.29
  6. Step 6: Final answer
    x = 49,790.78

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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.