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Finding the Fourth Proportional to 18,598.70, 27,904.86 and 8,608.22

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Solution

The fourth proportional to 18,598.70, 27,904.86 and 8,608.22 is: 12,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.70 : 27,904.86 = 8,608.22 : x
  2. Step 2: Convert to fraction form
    18,598.70/27,904.86 = 8,608.22/x
  3. Step 3: Cross multiply
    18,598.70x = 27,904.86 × 8,608.22
  4. Step 4: Simplify right side
    18,598.70x = 240,211,173.95
  5. Step 5: Solve for x
    x = 240,211,173.95/18,598.70
  6. Step 6: Final answer
    x = 12,915.48

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1.5x scale

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.