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Finding the Fourth Proportional to 66,290.96, 91,460.90 and 37,605.88

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Solution

The fourth proportional to 66,290.96, 91,460.90 and 37,605.88 is: 51,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.96 : 91,460.90 = 37,605.88 : x
  2. Step 2: Convert to fraction form
    66,290.96/91,460.90 = 37,605.88/x
  3. Step 3: Cross multiply
    66,290.96x = 91,460.90 × 37,605.88
  4. Step 4: Simplify right side
    66,290.96x = 3,439,467,630.09
  5. Step 5: Solve for x
    x = 3,439,467,630.09/66,290.96
  6. Step 6: Final answer
    x = 51,884.41

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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.