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Finding the Fourth Proportional to 18,895.16, 28,342.02 and 5,044.04

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Solution

The fourth proportional to 18,895.16, 28,342.02 and 5,044.04 is: 7,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.16 : 28,342.02 = 5,044.04 : x
  2. Step 2: Convert to fraction form
    18,895.16/28,342.02 = 5,044.04/x
  3. Step 3: Cross multiply
    18,895.16x = 28,342.02 × 5,044.04
  4. Step 4: Simplify right side
    18,895.16x = 142,958,282.56
  5. Step 5: Solve for x
    x = 142,958,282.56/18,895.16
  6. Step 6: Final answer
    x = 7,565.87

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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.