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Finding the Fourth Proportional to 18,994.30, 26,212.14 and 11,037.03

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Solution

The fourth proportional to 18,994.30, 26,212.14 and 11,037.03 is: 15,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.30 : 26,212.14 = 11,037.03 : x
  2. Step 2: Convert to fraction form
    18,994.30/26,212.14 = 11,037.03/x
  3. Step 3: Cross multiply
    18,994.30x = 26,212.14 × 11,037.03
  4. Step 4: Simplify right side
    18,994.30x = 289,304,077.25
  5. Step 5: Solve for x
    x = 289,304,077.25/18,994.30
  6. Step 6: Final answer
    x = 15,231.10

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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.