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Finding the Fourth Proportional to 65,233.92, 90,018.24 and 36,934.40

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Solution

The fourth proportional to 65,233.92, 90,018.24 and 36,934.40 is: 50,966.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,233.92 : 90,018.24 = 36,934.40 : x
  2. Step 2: Convert to fraction form
    65,233.92/90,018.24 = 36,934.40/x
  3. Step 3: Cross multiply
    65,233.92x = 90,018.24 × 36,934.40
  4. Step 4: Simplify right side
    65,233.92x = 3,324,769,683.46
  5. Step 5: Solve for x
    x = 3,324,769,683.46/65,233.92
  6. Step 6: Final answer
    x = 50,966.88

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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.