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Finding the Fourth Proportional to 65,153.54, 89,904.30 and 36,474.78

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Solution

The fourth proportional to 65,153.54, 89,904.30 and 36,474.78 is: 50,330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,153.54 : 89,904.30 = 36,474.78 : x
  2. Step 2: Convert to fraction form
    65,153.54/89,904.30 = 36,474.78/x
  3. Step 3: Cross multiply
    65,153.54x = 89,904.30 × 36,474.78
  4. Step 4: Simplify right side
    65,153.54x = 3,279,239,563.55
  5. Step 5: Solve for x
    x = 3,279,239,563.55/65,153.54
  6. Step 6: Final answer
    x = 50,330.95

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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.