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Finding the Fourth Proportional to 66,170.99, 91,314.36 and 37,097.43

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Solution

The fourth proportional to 66,170.99, 91,314.36 and 37,097.43 is: 51,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,170.99 : 91,314.36 = 37,097.43 : x
  2. Step 2: Convert to fraction form
    66,170.99/91,314.36 = 37,097.43/x
  3. Step 3: Cross multiply
    66,170.99x = 91,314.36 × 37,097.43
  4. Step 4: Simplify right side
    66,170.99x = 3,387,528,078.09
  5. Step 5: Solve for x
    x = 3,387,528,078.09/66,170.99
  6. Step 6: Final answer
    x = 51,193.55

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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.