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Finding the Fourth Proportional to 66,575.82, 91,870.56 and 36,354.99

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Solution

The fourth proportional to 66,575.82, 91,870.56 and 36,354.99 is: 50,167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.82 : 91,870.56 = 36,354.99 : x
  2. Step 2: Convert to fraction form
    66,575.82/91,870.56 = 36,354.99/x
  3. Step 3: Cross multiply
    66,575.82x = 91,870.56 × 36,354.99
  4. Step 4: Simplify right side
    66,575.82x = 3,339,953,290.09
  5. Step 5: Solve for x
    x = 3,339,953,290.09/66,575.82
  6. Step 6: Final answer
    x = 50,167.66

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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.