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Finding the Fourth Proportional to 66,607.26, 91,918.02 and 36,799.26

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Solution

The fourth proportional to 66,607.26, 91,918.02 and 36,799.26 is: 50,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,607.26 : 91,918.02 = 36,799.26 : x
  2. Step 2: Convert to fraction form
    66,607.26/91,918.02 = 36,799.26/x
  3. Step 3: Cross multiply
    66,607.26x = 91,918.02 × 36,799.26
  4. Step 4: Simplify right side
    66,607.26x = 3,382,515,116.67
  5. Step 5: Solve for x
    x = 3,382,515,116.67/66,607.26
  6. Step 6: Final answer
    x = 50,782.98

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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.