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Finding the Fourth Proportional to 65,472.72, 90,360.01 and 36,792.42

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Solution

The fourth proportional to 65,472.72, 90,360.01 and 36,792.42 is: 50,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472.72 : 90,360.01 = 36,792.42 : x
  2. Step 2: Convert to fraction form
    65,472.72/90,360.01 = 36,792.42/x
  3. Step 3: Cross multiply
    65,472.72x = 90,360.01 × 36,792.42
  4. Step 4: Simplify right side
    65,472.72x = 3,324,563,439.12
  5. Step 5: Solve for x
    x = 3,324,563,439.12/65,472.72
  6. Step 6: Final answer
    x = 50,777.84

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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.