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Finding the Fourth Proportional to 65,766.57, 90,735.66 and 37,452.21

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Solution

The fourth proportional to 65,766.57, 90,735.66 and 37,452.21 is: 51,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,766.57 : 90,735.66 = 37,452.21 : x
  2. Step 2: Convert to fraction form
    65,766.57/90,735.66 = 37,452.21/x
  3. Step 3: Cross multiply
    65,766.57x = 90,735.66 × 37,452.21
  4. Step 4: Simplify right side
    65,766.57x = 3,398,250,992.81
  5. Step 5: Solve for x
    x = 3,398,250,992.81/65,766.57
  6. Step 6: Final answer
    x = 51,671.40

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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.