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Finding the Fourth Proportional to 19,034.16, 28,564.16 and 6,722.16

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Solution

The fourth proportional to 19,034.16, 28,564.16 and 6,722.16 is: 10,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,034.16 : 28,564.16 = 6,722.16 : x
  2. Step 2: Convert to fraction form
    19,034.16/28,564.16 = 6,722.16/x
  3. Step 3: Cross multiply
    19,034.16x = 28,564.16 × 6,722.16
  4. Step 4: Simplify right side
    19,034.16x = 192,012,853.79
  5. Step 5: Solve for x
    x = 192,012,853.79/19,034.16
  6. Step 6: Final answer
    x = 10,087.80

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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.