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Finding the Fourth Proportional to 65,977.96, 91,061.78 and 37,683.65

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Solution

The fourth proportional to 65,977.96, 91,061.78 and 37,683.65 is: 52,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,977.96 : 91,061.78 = 37,683.65 : x
  2. Step 2: Convert to fraction form
    65,977.96/91,061.78 = 37,683.65/x
  3. Step 3: Cross multiply
    65,977.96x = 91,061.78 × 37,683.65
  4. Step 4: Simplify right side
    65,977.96x = 3,431,540,245.90
  5. Step 5: Solve for x
    x = 3,431,540,245.90/65,977.96
  6. Step 6: Final answer
    x = 52,010.40

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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.