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Finding the Fourth Proportional to 66,154.65, 91,293.06 and 35,939.73

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Solution

The fourth proportional to 66,154.65, 91,293.06 and 35,939.73 is: 49,596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154.65 : 91,293.06 = 35,939.73 : x
  2. Step 2: Convert to fraction form
    66,154.65/91,293.06 = 35,939.73/x
  3. Step 3: Cross multiply
    66,154.65x = 91,293.06 × 35,939.73
  4. Step 4: Simplify right side
    66,154.65x = 3,281,047,927.27
  5. Step 5: Solve for x
    x = 3,281,047,927.27/66,154.65
  6. Step 6: Final answer
    x = 49,596.63

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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.