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Finding the Fourth Proportional to 66,950.56, 92,388.30 and 38,654.56

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Solution

The fourth proportional to 66,950.56, 92,388.30 and 38,654.56 is: 53,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,950.56 : 92,388.30 = 38,654.56 : x
  2. Step 2: Convert to fraction form
    66,950.56/92,388.30 = 38,654.56/x
  3. Step 3: Cross multiply
    66,950.56x = 92,388.30 × 38,654.56
  4. Step 4: Simplify right side
    66,950.56x = 3,571,229,085.65
  5. Step 5: Solve for x
    x = 3,571,229,085.65/66,950.56
  6. Step 6: Final answer
    x = 53,341.29

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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.