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Finding the Fourth Proportional to 18,669.48, 27,994.50 and 8,806.11

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Solution

The fourth proportional to 18,669.48, 27,994.50 and 8,806.11 is: 13,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.48 : 27,994.50 = 8,806.11 : x
  2. Step 2: Convert to fraction form
    18,669.48/27,994.50 = 8,806.11/x
  3. Step 3: Cross multiply
    18,669.48x = 27,994.50 × 8,806.11
  4. Step 4: Simplify right side
    18,669.48x = 246,522,646.40
  5. Step 5: Solve for x
    x = 246,522,646.40/18,669.48
  6. Step 6: Final answer
    x = 13,204.58

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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.