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Finding the Fourth Proportional to 19,133.76, 28,704.81 and 8,034.12

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Solution

The fourth proportional to 19,133.76, 28,704.81 and 8,034.12 is: 12,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.76 : 28,704.81 = 8,034.12 : x
  2. Step 2: Convert to fraction form
    19,133.76/28,704.81 = 8,034.12/x
  3. Step 3: Cross multiply
    19,133.76x = 28,704.81 × 8,034.12
  4. Step 4: Simplify right side
    19,133.76x = 230,617,888.12
  5. Step 5: Solve for x
    x = 230,617,888.12/19,133.76
  6. Step 6: Final answer
    x = 12,052.93

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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.