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Finding the Fourth Proportional to 18,806.21, 28,202.01 and 10,036.34

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Solution

The fourth proportional to 18,806.21, 28,202.01 and 10,036.34 is: 15,050.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.21 : 28,202.01 = 10,036.34 : x
  2. Step 2: Convert to fraction form
    18,806.21/28,202.01 = 10,036.34/x
  3. Step 3: Cross multiply
    18,806.21x = 28,202.01 × 10,036.34
  4. Step 4: Simplify right side
    18,806.21x = 283,044,820.03
  5. Step 5: Solve for x
    x = 283,044,820.03/18,806.21
  6. Step 6: Final answer
    x = 15,050.61

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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.