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Finding the Fourth Proportional to 60,601.46, 90,915.95 and 18,485.30

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Solution

The fourth proportional to 60,601.46, 90,915.95 and 18,485.30 is: 27,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,601.46 : 90,915.95 = 18,485.30 : x
  2. Step 2: Convert to fraction form
    60,601.46/90,915.95 = 18,485.30/x
  3. Step 3: Cross multiply
    60,601.46x = 90,915.95 × 18,485.30
  4. Step 4: Simplify right side
    60,601.46x = 1,680,608,884.04
  5. Step 5: Solve for x
    x = 1,680,608,884.04/60,601.46
  6. Step 6: Final answer
    x = 27,732.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.