Home / 66,653.43-91,991.75-38,353.65

Finding the Fourth Proportional to 66,653.43, 91,991.75 and 38,353.65

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Solution

The fourth proportional to 66,653.43, 91,991.75 and 38,353.65 is: 52,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.43 : 91,991.75 = 38,353.65 : x
  2. Step 2: Convert to fraction form
    66,653.43/91,991.75 = 38,353.65/x
  3. Step 3: Cross multiply
    66,653.43x = 91,991.75 × 38,353.65
  4. Step 4: Simplify right side
    66,653.43x = 3,528,219,190.62
  5. Step 5: Solve for x
    x = 3,528,219,190.62/66,653.43
  6. Step 6: Final answer
    x = 52,933.80

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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.