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Finding the Fourth Proportional to 12,503.97, 18,735.19 and 8,798.42

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Solution

The fourth proportional to 12,503.97, 18,735.19 and 8,798.42 is: 13,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.97 : 18,735.19 = 8,798.42 : x
  2. Step 2: Convert to fraction form
    12,503.97/18,735.19 = 8,798.42/x
  3. Step 3: Cross multiply
    12,503.97x = 18,735.19 × 8,798.42
  4. Step 4: Simplify right side
    12,503.97x = 164,840,095.24
  5. Step 5: Solve for x
    x = 164,840,095.24/12,503.97
  6. Step 6: Final answer
    x = 13,183.02

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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.